<s>
Mastodon	B-Application
is	O
free	B-License
and	I-License
open-source	I-License
software	I-License
for	O
running	O
self-hosted	O
social	O
networking	O
services	O
.	O
</s>
<s>
It	O
has	O
microblogging	B-Application
features	O
similar	O
to	O
Twitter	B-Application
,	O
which	O
are	O
offered	O
by	O
a	O
large	O
number	O
of	O
independently	O
run	O
nodes	B-Protocol
,	O
known	O
as	O
instances	O
,	O
each	O
with	O
its	O
own	O
code	O
of	O
conduct	O
,	O
terms	O
of	O
service	O
,	O
privacy	O
policy	O
,	O
privacy	O
options	O
,	O
and	O
content	O
moderation	O
policies	O
.	O
</s>
<s>
Each	O
user	O
is	O
a	O
member	O
of	O
a	O
specific	O
Mastodon	B-Application
instance	O
(	O
also	O
called	O
a	O
server	O
)	O
,	O
which	O
can	O
interoperate	O
as	O
a	O
federated	O
social	O
network	O
,	O
allowing	O
users	O
on	O
different	O
instances	O
to	O
interact	O
with	O
each	O
other	O
.	O
</s>
<s>
Mastodon	B-Application
is	O
also	O
part	O
of	O
the	O
Fediverse	B-Application
ensemble	O
of	O
computer	O
servers	O
,	O
which	O
use	O
shared	O
protocols	O
allowing	O
users	O
to	O
interact	O
with	O
other	O
users	O
on	O
computers	O
running	O
compatible	O
software	O
packages	O
such	O
as	O
PeerTube	B-Application
and	O
Friendica	B-Application
.	O
</s>
<s>
Mastodon	B-Application
is	O
crowdfunded	O
and	O
does	O
not	O
contain	O
ads	O
.	O
</s>
<s>
Mastodon	B-Application
was	O
created	O
by	O
Eugen	O
Rochko	O
and	O
announced	O
on	O
Hacker	B-Application
News	I-Application
in	O
October	O
2016	O
,	O
and	O
gained	O
significant	O
adoption	O
in	O
2022	O
in	O
the	O
wake	O
of	O
Twitter	B-Application
's	O
acquisition	O
by	O
Elon	O
Musk	O
.	O
</s>
<s>
The	O
project	O
is	O
maintained	O
by	O
German	O
non-profit	O
Mastodon	B-Application
gGmbH	O
.	O
</s>
<s>
Mastodon	B-Application
servers	O
run	O
social	O
networking	O
software	O
that	O
is	O
capable	O
of	O
communicating	O
using	O
W3C	O
's	O
ActivityPub	B-Operating_System
standard	O
,	O
which	O
has	O
been	O
implemented	O
since	O
version	O
1.6	O
.	O
</s>
<s>
A	O
Mastodon	B-Application
user	O
can	O
therefore	O
interact	O
with	O
users	O
on	O
any	O
other	O
server	O
in	O
the	O
Fediverse	B-Application
that	O
supports	O
ActivityPub	B-Operating_System
.	O
</s>
<s>
Since	O
version	O
2.9.0	O
Mastodon	B-Application
has	O
offered	O
a	O
single	O
column	O
mode	O
for	O
new	O
users	O
by	O
default	O
.	O
</s>
<s>
In	O
advanced	O
mode	O
Mastodon	B-Application
approximates	O
the	O
microblogging	B-Application
user	O
experience	O
of	O
TweetDeck	B-Operating_System
.	O
</s>
<s>
On	O
a	O
standard	O
Mastodon	B-Application
instance	O
,	O
these	O
messages	O
can	O
include	O
up	O
to	O
500	O
text-based	O
characters	O
,	O
greater	O
than	O
Twitter	B-Application
's	O
280	O
character	O
limit	O
,	O
although	O
numerous	O
Mastodon	B-Application
servers	O
have	O
forked	B-Application
the	O
source	O
code	O
to	O
allow	O
a	O
larger	O
character	O
limit	O
.	O
</s>
<s>
Users	O
join	O
a	O
specific	O
Mastodon	B-Application
server	O
,	O
rather	O
than	O
a	O
single	O
centralized	O
website	O
or	O
application	O
.	O
</s>
<s>
The	O
servers	O
are	O
connected	O
as	O
nodes	B-Protocol
in	O
a	O
network	O
,	O
and	O
each	O
server	O
can	O
administrate	O
its	O
own	O
rules	O
,	O
account	O
privileges	O
,	O
and	O
whether	O
to	O
share	O
messages	O
to	O
and	O
from	O
other	O
servers	O
.	O
</s>
<s>
Mastodon	B-Application
includes	O
a	O
number	O
of	O
specific	O
privacy	O
features	O
.	O
</s>
<s>
Mastodon	B-Application
servers	O
have	O
used	O
this	O
feature	O
to	O
hide	O
spoilers	O
,	O
trigger	O
warnings	O
,	O
and	O
not	O
safe	O
for	O
work	O
(	O
NSFW	O
)	O
content	O
,	O
though	O
some	O
accounts	O
use	O
the	O
feature	O
to	O
hide	O
links	O
and	O
thoughts	O
others	O
might	O
not	O
want	O
to	O
read	O
.	O
</s>
<s>
Mastodon	B-Application
aggregates	O
messages	O
in	O
local	O
and	O
federated	O
timelines	O
in	O
real-time	O
.	O
</s>
<s>
The	O
local	O
timeline	O
shows	O
messages	O
from	O
users	O
on	O
a	O
singular	O
server	O
,	O
while	O
the	O
federated	O
timeline	O
shows	O
messages	O
across	O
all	O
participating	O
Mastodon	B-Application
servers	O
.	O
</s>
<s>
Users	O
can	O
communicate	O
across	O
connected	O
Mastodon	B-Application
servers	O
with	O
usernames	O
similar	O
in	O
format	O
to	O
full	O
email	O
addresses	O
.	O
</s>
<s>
In	O
early	O
2017	O
,	O
journalists	O
like	O
Sarah	O
Jeong	O
distinguished	O
Mastodon	B-Application
from	O
Twitter	B-Application
for	O
its	O
approach	O
to	O
combatting	O
harassment	O
.	O
</s>
<s>
Mastodon	B-Application
uses	O
community-based	O
moderation	O
,	O
in	O
which	O
each	O
server	O
can	O
limit	O
or	O
filter	O
out	O
undesirable	O
types	O
of	O
content	O
,	O
while	O
Twitter	B-Application
uses	O
a	O
single	O
,	O
global	O
policy	O
on	O
content	O
moderation	O
.	O
</s>
<s>
For	O
example	O
,	O
mastodon.social	O
and	O
several	O
other	O
servers	O
ban	O
content	O
that	O
is	O
illegal	O
in	O
Germany	O
or	O
France	O
,	O
including	O
Nazi	O
symbolism	O
,	O
Holocaust	O
denial	O
,	O
and	O
incitement	O
of	O
violence	O
against	O
Jews	O
.	O
</s>
<s>
Other	O
instances	O
of	O
Mastodon	B-Application
,	O
however	O
can	O
choose	O
to	O
take	O
a	O
more	O
lenient	O
approach	O
to	O
such	O
material	O
.	O
</s>
<s>
The	O
main	O
author	O
of	O
the	O
Mastodon	B-Application
software	I-Application
,	O
Eugen	O
Rochko	O
,	O
believes	O
that	O
small	O
,	O
closely	O
related	O
communities	O
deal	O
with	O
unwanted	O
behaviour	O
more	O
effectively	O
than	O
a	O
large	O
company	O
's	O
small	O
safety	O
team	O
.	O
</s>
<s>
Users	O
can	O
also	O
block	O
and	O
report	O
others	O
to	O
administrators	O
,	O
much	O
like	O
on	O
Twitter	B-Application
.	O
</s>
<s>
Unlike	O
Twitter	B-Application
,	O
Mastodon	B-Application
is	O
privacy-focused	O
and	O
only	O
searches	O
hashtags	O
and	O
mentioned	O
accounts	O
in	O
the	O
Fediverse	B-Application
,	O
not	O
the	O
full	O
text	O
of	O
toots	O
.	O
</s>
<s>
Furthermore	O
,	O
searching	O
for	O
toots	O
will	O
only	O
show	O
results	O
from	O
the	O
Mastodon	B-Application
instance	O
the	O
user	O
is	O
on	O
and	O
from	O
parts	O
of	O
the	O
Fediverse	B-Application
that	O
that	O
instance	O
has	O
cached	O
via	O
federation	O
,	O
not	O
from	O
all	O
toots	O
on	O
all	O
instances	O
.	O
</s>
<s>
The	O
website	O
allows	O
for	O
searching	O
for	O
Mastodon	B-Application
accounts	O
on	O
any	O
instance	O
listed	O
.	O
</s>
<s>
For	O
similar	O
reasons	O
,	O
only	O
hashtags	O
can	O
appear	O
in	O
a	O
Mastodon	B-Application
instance	O
's	O
trending	O
topics	O
,	O
not	O
arbitrary	O
popular	O
words	O
,	O
and	O
trending	O
topics	O
vary	O
between	O
instances	O
,	O
since	O
individual	O
instances	O
are	O
aware	O
of	O
different	O
subsets	O
of	O
toots	O
from	O
the	O
whole	O
Fediverse	B-Application
.	O
</s>
<s>
In	O
September	O
2018	O
,	O
with	O
the	O
release	O
of	O
version	O
2.5	O
with	O
redesigned	O
public	O
profile	O
pages	O
,	O
Mastodon	B-Application
marked	O
its	O
100th	O
release	O
.	O
</s>
<s>
Mastodon	B-Application
2.6	O
was	O
released	O
in	O
October	O
2018	O
,	O
introducing	O
the	O
possibilities	O
of	O
verified	O
profiles	O
and	O
live	O
,	O
in-stream	O
link	O
previews	O
for	O
images	O
and	O
videos	O
.	O
</s>
<s>
Mastodon	B-Application
2.8.1	O
,	O
released	O
in	O
May	O
2019	O
,	O
made	O
images	O
with	O
content	O
warnings	O
blurred	O
instead	O
of	O
completely	O
hidden	O
.	O
</s>
<s>
In	O
August	O
2020	O
,	O
Mastodon	B-Application
3.2	O
was	O
released	O
.	O
</s>
<s>
In	O
July	O
2021	O
,	O
an	O
official	O
client	O
for	O
iOS	B-Application
devices	O
was	O
released	O
.	O
</s>
<s>
Mastodon	B-Application
4.0	O
was	O
released	O
in	O
November	O
2022	O
,	O
including	O
language	O
support	O
for	O
translating	O
posts	O
,	O
editing	O
posts	O
and	O
following	O
hashtags	O
.	O
</s>
<s>
Mastodon	B-Application
is	O
written	O
as	O
free	B-License
and	I-License
open-source	I-License
software	I-License
(	O
FOSS	B-License
)	O
for	O
federated	O
microblogging	B-Application
,	O
which	O
anybody	O
can	O
contribute	O
code	O
to	O
,	O
and	O
which	O
anyone	O
can	O
run	O
on	O
their	O
own	O
server	O
infrastructure	O
,	O
if	O
they	O
wish	O
,	O
or	O
join	O
servers	O
run	O
by	O
other	O
people	O
within	O
the	O
fediverse	B-Application
network	O
.	O
</s>
<s>
Its	O
server-side	B-Architecture
software	I-Architecture
is	O
powered	O
by	O
Ruby	B-Application
on	I-Application
Rails	I-Application
and	O
Node.js	B-Language
,	O
and	O
its	O
front	B-Architecture
end	I-Architecture
is	O
written	O
in	O
React.js	B-Application
and	O
Redux	B-Language
.	O
</s>
<s>
The	O
database	O
software	O
is	O
PostgreSQL	B-Application
.	O
</s>
<s>
The	O
service	O
is	O
interoperable	O
with	O
the	O
decentralized	B-Application
social	O
networks	O
and	O
platforms	O
which	O
use	O
the	O
ActivityPub	B-Operating_System
protocol	O
between	O
each	O
other	O
.	O
</s>
<s>
Since	O
version	O
3.0	O
,	O
Mastodon	B-Application
dropped	O
previous	O
support	O
for	O
OStatus	B-Application
.	O
</s>
<s>
Client	O
apps	O
for	O
interacting	O
with	O
the	O
Mastodon	B-Application
API	O
are	O
available	O
for	O
desktop	O
computer	O
operating	O
systems	O
,	O
including	O
Windows	B-Application
,	O
macOS	B-Application
and	O
the	O
GNU/Linux	B-Application
family	O
of	O
operating	O
systems	O
,	O
and	O
on	O
mobile	O
phone	O
systems	O
,	O
including	O
iOS	B-Application
,	O
Android	B-Application
and	O
open-source	B-Operating_System
mobile	I-Operating_System
phones	I-Operating_System
.	O
</s>
<s>
While	O
Mastodon	B-Application
was	O
first	O
released	O
in	O
October	O
2016	O
,	O
the	O
service	O
began	O
to	O
expand	O
in	O
late	O
March	O
and	O
early	O
April	O
2017	O
.	O
</s>
<s>
The	O
Verge	O
wrote	O
that	O
the	O
community	O
at	O
this	O
time	O
was	O
small	O
and	O
that	O
it	O
had	O
yet	O
to	O
attract	O
the	O
personalities	O
that	O
keep	O
users	O
at	O
Twitter	B-Application
.	O
</s>
<s>
Some	O
"	O
alt-tech	O
"	O
groups	O
are	O
using	O
Mastodon	B-Application
including	O
some	O
that	O
are	O
ideologically	O
neutral	O
as	O
well	O
as	O
political	O
extremists	O
and	O
organized	O
retail	O
crime	O
groups	O
.	O
</s>
<s>
Membership	O
of	O
Mastodon	B-Application
and	O
other	O
alternative	O
social	O
media	O
sites	O
increased	O
in	O
early	O
December	O
2018	O
after	O
Tumblr	B-Application
announced	O
its	O
intention	O
to	O
ban	O
all	O
adult	O
content	O
from	O
the	O
site	O
.	O
</s>
<s>
In	O
November	O
2019	O
,	O
nearly	O
20,000	O
Twitter	B-Application
users	O
in	O
India	O
temporarily	O
shifted	O
to	O
Mastodon	B-Application
over	O
complaints	O
by	O
users	O
against	O
Twitter	B-Application
's	O
moderation	O
policies	O
.	O
</s>
<s>
To	O
circumvent	O
the	O
increasing	O
online	O
censorship	O
of	O
social	O
networks	O
in	O
mainland	O
China	O
,	O
an	O
increasing	O
number	O
of	O
Chinese	O
language	O
users	O
have	O
chosen	O
to	O
migrate	O
to	O
Mastodon	B-Application
in	O
2022	O
.	O
</s>
<s>
A	O
spike	O
in	O
Mastodon	B-Application
's	O
user	O
participation	O
occurred	O
in	O
April	O
2022	O
,	O
following	O
the	O
25April	O
announcement	O
of	O
Elon	O
Musk	O
purchasing	O
Twitter	B-Application
.	O
</s>
<s>
By	O
27April	O
,	O
new	O
users	O
had	O
joined	O
Mastodon	B-Application
.	O
</s>
<s>
On	O
28April	O
2022	O
,	O
the	O
European	O
Data	O
Protection	O
Supervisor	O
(	O
EDPS	O
)	O
launched	O
the	O
official	O
ActivityPub	B-Operating_System
microblogging	B-Application
platform	O
(	O
called	O
EUVoice	O
)	O
of	O
the	O
EU	O
institutions	O
,	O
bodies	O
and	O
agencies	O
(	O
EUIs	O
)	O
,	O
based	O
on	O
Mastodon	B-Application
.	O
</s>
<s>
Mastodon	B-Application
had	O
an	O
increase	O
of	O
new	O
users	O
from	O
a	O
resultant	O
"	O
diaspora	O
"	O
on	O
28	O
October	O
alone	O
.	O
</s>
<s>
In	O
particular	O
,	O
Mastodon	B-Application
's	O
largest	O
instance	O
,	O
mastodon.social	O
,	O
needed	O
capacity	O
upgrades	O
to	O
handle	O
the	O
new	O
load	O
.	O
</s>
<s>
Mastodon	B-Application
's	O
increased	O
adoption	O
continued	O
in	O
the	O
days	O
following	O
the	O
Twitter	B-Application
takeover	O
.	O
</s>
<s>
On	O
11	O
November	O
,	O
the	O
number	O
of	O
new	O
users	O
of	O
the	O
platform	O
compared	O
to	O
the	O
previous	O
week	O
was	O
reported	O
to	O
be	O
700	O
,	O
000	O
,	O
moving	O
Mastodon	B-Application
over	O
the	O
7	O
million	O
user	O
mark	O
.	O
</s>
<s>
During	O
that	O
period	O
,	O
several	O
prominent	O
figures	O
joined	O
Mastodon	B-Application
,	O
including	O
prominent	O
actors	O
,	O
comedians	O
,	O
journalists	O
,	O
political	O
activists	O
,	O
and	O
politicians	O
.	O
</s>
<s>
In	O
December	O
2022	O
,	O
the	O
number	O
of	O
monthly	O
active	O
users	O
of	O
Mastodon	B-Application
reached	O
two	O
million	O
.	O
</s>
<s>
On	O
15	O
December	O
,	O
the	O
official	O
Mastodon	B-Application
Twitter	B-Application
account	I-Application
was	O
banned	O
from	O
Twitter	B-Application
,	O
as	O
well	O
as	O
other	O
accounts	O
with	O
links	O
to	O
some	O
Mastodon	B-Application
instances	O
.	O
</s>
<s>
On	O
the	O
following	O
day	O
,	O
Twitter	B-Application
began	O
to	O
flag	O
all	O
Mastodon	B-Application
links	O
as	O
malware	O
,	O
preventing	O
Twitter	B-Application
users	O
from	O
sharing	O
them	O
.	O
</s>
<s>
Media	O
coverage	O
of	O
the	O
bannings	O
included	O
an	O
erroneous	O
report	O
of	O
an	O
account	O
for	O
"	O
John	O
Mastodon	B-Application
"	O
(	O
a	O
misspelling	O
of	O
@joinmastodon	O
)	O
being	O
banned	O
,	O
described	O
as	O
"	O
founder	O
of	O
a	O
competing	O
social	O
media	O
company	O
named	O
after	O
himself	O
"	O
.	O
</s>
<s>
Mastodon	B-Application
users	O
wrote	O
fictional	O
backstories	O
and	O
memes	O
about	O
"	O
John	O
Mastodon	B-Application
"	O
and	O
circulated	O
the	O
hashtag	O
#JohnMastodon	O
.	O
</s>
<s>
Following	O
the	O
Mastodon	B-Application
suspension	O
and	O
ban	O
on	O
Mastodon	B-Application
links	O
on	O
Twitter	B-Application
,	O
Twitter	B-Application
introduced	O
a	O
new	O
policy	O
on	O
18	O
December	O
to	O
prohibit	O
sharing	O
links	O
on	O
Twitter	B-Application
to	O
a	O
variety	O
of	O
social	O
media	O
websites	O
,	O
with	O
Mastodon	B-Application
being	O
one	O
of	O
those	O
blocked	O
.	O
</s>
<s>
By	O
19	O
December	O
,	O
the	O
policy	O
and	O
official	O
mentions	O
about	O
it	O
had	O
been	O
removed	O
from	O
Twitter	B-Application
web	O
pages	O
.	O
</s>
<s>
Musk	O
stated	O
the	O
following	O
day	O
that	O
banning	O
users	O
for	O
posting	O
Mastodon	B-Application
links	O
had	O
been	O
a	O
mistake	O
.	O
</s>
<s>
Rochko	O
claimed	O
that	O
at	O
least	O
five	O
venture	O
capital	O
firms	O
looking	O
to	O
invest	O
in	O
Mastodon	B-Application
had	O
been	O
turned	O
away	O
by	O
December	O
2022	O
,	O
and	O
that	O
Mastodon	B-Application
's	O
nonprofit	O
status	O
would	O
not	O
be	O
jeopardized	O
.	O
</s>
<s>
By	O
the	O
start	O
of	O
January	O
2023	O
,	O
Mastodon	B-Application
had	O
1.8	O
million	O
active	O
users	O
,	O
down	O
30%	O
from	O
its	O
peak	O
of	O
over	O
2.5	O
million	O
active	O
users	O
in	O
early	O
December	O
2022	O
.	O
</s>
<s>
On	O
19	O
March	O
2023	O
,	O
Mastodon	B-Application
passed	O
the	O
ten	O
million	O
user	O
mark	O
.	O
</s>
<s>
In	O
2017	O
,	O
Pixiv	B-Application
launched	O
a	O
Mastodon-based	O
social	O
network	O
named	O
Pawoo	O
.	O
</s>
<s>
Pawoo	O
is	O
banned	O
by	O
most	O
instances	O
on	O
Mastodon	B-Application
due	O
to	O
allowing	O
art	O
.	O
</s>
<s>
In	O
April	O
2019	O
,	O
computer	O
manufacturer	O
Purism	O
released	O
a	O
fork	B-Application
of	O
Mastodon	B-Application
named	O
Librem	O
Social	O
.	O
</s>
<s>
Gab	O
,	O
a	O
controversial	O
social	O
network	O
with	O
a	O
far-right	O
user	O
base	O
,	O
changed	O
its	O
software	O
platform	O
to	O
a	O
fork	B-Application
of	O
Mastodon	B-Application
and	O
became	O
the	O
largest	O
Mastodon	B-Application
node	O
in	O
July	O
2019	O
.	O
</s>
<s>
Gab	O
's	O
adoption	O
of	O
Mastodon	B-Application
allowed	O
Gab	O
to	O
be	O
accessed	O
from	O
third-party	O
Mastodon	B-Application
applications	O
,	O
although	O
four	O
of	O
them	O
blocked	O
Gab	O
shortly	O
after	O
the	O
change	O
.	O
</s>
<s>
In	O
response	O
,	O
Mastodon	B-Application
's	O
main	O
contributors	O
stated	O
in	O
their	O
blog	O
that	O
they	O
were	O
"	O
completely	O
opposed	O
to	O
Gab	O
’s	O
project	O
and	O
philosophy	O
"	O
,	O
and	O
criticized	O
Gab	O
for	O
attempting	O
"	O
to	O
monetize	O
and	O
platform	O
racist	O
content	O
while	O
hiding	O
behind	O
the	O
banner	O
of	O
free	O
speech	O
"	O
and	O
for	O
"	O
paywalling	O
basic	O
features	O
that	O
are	O
freely	O
available	O
on	O
Mastodon	B-Application
"	O
.	O
</s>
<s>
In	O
October	O
2019	O
,	O
the	O
Fourth	O
Estate	O
Public	O
Benefit	O
Corporation	O
released	O
a	O
fork	B-Application
of	O
Mastodon	B-Application
named	O
Civiq.Social	O
.	O
</s>
<s>
Tooter	O
is	O
forked	B-Application
(	O
derived	O
)	O
from	O
the	O
main	O
branch	O
of	O
Mastodon	B-Application
software	I-Application
.	O
</s>
<s>
In	O
October	O
2021	O
,	O
former	O
US	O
President	O
Donald	O
Trump	O
founded	O
Truth	B-Application
Social	I-Application
,	O
which	O
is	O
based	O
on	O
Mastodon	B-Application
.	O
</s>
<s>
Initially	O
,	O
Truth	B-Application
Social	I-Application
did	O
not	O
make	O
its	O
source	O
code	O
available	O
,	O
violating	O
Mastodon	B-Application
's	O
AGPLv3	B-Application
license	O
.	O
</s>
<s>
Eugen	O
Rochko	O
sent	O
a	O
formal	O
letter	O
to	O
Truth	B-Application
Social	I-Application
's	O
chief	O
legal	O
officer	O
on	O
26	O
October	O
2021	O
.	O
</s>
<s>
On	O
12	O
November	O
2021	O
,	O
Truth	B-Application
Social	I-Application
published	O
its	O
source	O
code	O
.	O
</s>
<s>
While	O
Mastodon	B-Application
's	O
decentralized	B-Application
structure	O
is	O
one	O
of	O
its	O
most	O
distinctive	O
features	O
,	O
it	O
also	O
poses	O
additional	O
security	O
challenges	O
.	O
</s>
<s>
Since	O
many	O
Mastodon	B-Application
instances	O
are	O
run	O
by	O
volunteers	O
,	O
some	O
security	O
experts	O
are	O
concerned	O
about	O
data	O
security	O
and	O
responsiveness	O
to	O
new	O
threats	O
(	O
like	O
high-severity	O
vulnerabilities	O
)	O
considering	O
the	O
difficulty	O
of	O
configuring	O
and	O
maintaining	O
servers	O
as	O
well	O
as	O
uneven	O
skill	O
level	O
among	O
administrators	O
.	O
</s>
<s>
It	O
is	O
worth	O
noting	O
that	O
Mastodon	B-Application
collects	O
considerably	O
less	O
personal	O
data	O
,	O
compared	O
to	O
other	O
social	O
media	O
platforms	O
which	O
makes	O
it	O
a	O
lower-value	O
target	O
and	O
potential	O
losses	O
less	O
significant	O
.	O
</s>
<s>
,	O
Mastodon	B-Application
server	O
has	O
not	O
yet	O
undergone	O
any	O
formal	O
security	O
audit	O
and	O
security	O
weaknesses	O
are	O
likely	O
to	O
be	O
discovered	O
in	O
the	O
future	O
.	O
</s>
<s>
While	O
Mastodon	B-Application
instances	O
can	O
limit	O
or	O
filter	O
out	O
undesirable	O
types	O
of	O
content	O
,	O
a	O
large-scale	O
harassment	O
and	O
misinformation	O
campaign	O
may	O
require	O
active	O
moderation	O
.	O
</s>
<s>
Mastodon	B-Application
is	O
crowdfunded	O
and	O
does	O
not	O
contain	O
ads	O
;	O
as	O
of	O
November	O
2022	O
,	O
it	O
was	O
supported	O
by	O
3,500	O
people	O
.	O
</s>
