<s>
The	O
WTFPL	B-License
is	O
a	O
permissive	B-License
free	I-License
software	I-License
license	I-License
.	O
</s>
<s>
As	O
a	O
public	O
domain	O
like	O
license	O
,	O
the	O
WTFPL	B-License
is	O
essentially	O
the	O
same	O
as	O
dedication	O
to	O
the	O
public	O
domain	O
.	O
</s>
<s>
The	O
title	O
is	O
an	O
abbreviation	O
of	O
"	O
Do	B-License
What	I-License
The	I-License
Fuck	I-License
You	I-License
Want	I-License
To	I-License
Public	I-License
License	I-License
"	O
.	O
</s>
<s>
The	O
first	O
version	O
of	O
the	O
WTFPL	B-License
,	O
released	O
in	O
March	O
2000	O
,	O
was	O
written	O
by	O
Banlu	O
Kemiyatorn	O
for	O
his	O
own	O
software	O
project	O
.	O
</s>
<s>
The	O
WTFPL	B-License
intends	O
to	O
be	O
a	O
permissive	B-License
,	O
public-domain-like	O
license	O
.	O
</s>
<s>
The	O
license	O
is	O
not	O
a	O
copyleft	B-License
license	I-License
.	O
</s>
<s>
The	O
WTFPL	B-License
does	O
not	O
include	O
a	O
no-warranty	O
disclaimer	O
,	O
unlike	O
other	O
permissive	B-License
licenses	I-License
,	O
such	O
as	O
the	B-License
MIT	I-License
License	I-License
.	O
</s>
<s>
Though	O
the	O
WTFPL	B-License
is	O
untested	O
in	O
court	O
,	O
the	O
official	O
website	O
offers	O
a	O
disclaimer	O
to	O
be	O
used	O
in	O
software	O
source	O
code	O
.	O
</s>
<s>
The	O
WTFPL	B-License
is	O
not	O
in	O
wide	O
use	O
among	O
open-source	B-Application
software	I-Application
projects	O
;	O
according	O
to	O
Black	O
Duck	O
Software	O
,	O
the	O
WTFPL	B-License
is	O
used	O
by	O
less	O
than	O
one	O
percent	O
of	O
open-source	B-Application
projects	O
.	O
</s>
<s>
Examples	O
include	O
the	O
OpenStreetMap	O
Potlatch	O
online	O
editor	O
,	O
the	O
video	O
game	O
Liero	B-Application
(	O
version	O
1.36	O
)	O
,	O
yalu102	O
and	O
MediaWiki	B-Application
extensions	O
.	O
</s>
<s>
More	O
than	O
5,000	O
Wikimedia	O
Commons	O
files	O
and	O
more	O
than	O
24,000	O
Projects	O
on	O
GitHub	O
were	O
published	O
under	O
the	O
terms	O
of	O
the	O
WTFPL	B-License
.	O
</s>
<s>
The	O
license	O
was	O
confirmed	O
as	O
a	O
GPL-compatible	O
free	B-License
software	I-License
license	I-License
by	O
the	B-Operating_System
Free	I-Operating_System
Software	I-Operating_System
Foundation	I-Operating_System
,	O
but	O
its	O
use	O
is	O
"	O
not	O
recommended	O
"	O
.	O
</s>
<s>
In	O
2009	O
,	O
the	O
Open	O
Source	O
Initiative	O
chose	O
not	O
to	O
approve	O
the	O
license	O
as	O
an	O
open-source	B-Application
license	O
due	O
to	O
redundancy	O
with	O
the	O
Fair	B-License
License	I-License
.	O
</s>
<s>
The	O
WTFPL	B-License
version	O
2	O
is	O
an	O
accepted	O
Copyfree	B-License
license	O
.	O
</s>
<s>
It	O
is	O
also	O
accepted	O
by	O
Fedora	O
as	O
a	O
free	O
license	O
and	O
GPL-compatible	O
.	O
</s>
<s>
Some	O
software	O
authors	O
have	O
said	O
that	O
the	O
license	O
is	O
not	O
very	O
serious	O
;	O
forks	B-Application
have	O
tried	O
to	O
address	O
wording	O
ambiguity	O
and	O
liability	O
concerns	O
.	O
</s>
<s>
OSI	O
founding	O
president	O
Eric	O
S	O
.	O
Raymond	O
interpreted	O
the	O
license	O
as	O
written	O
satire	O
against	O
the	O
restrictions	O
of	O
the	O
GPL	B-License
and	O
other	O
software	O
licenses	O
;	O
WTFPL	B-License
version	O
2	O
author	O
Sam	O
Hocevar	O
later	O
confirmed	O
that	O
the	O
WTFPL	B-License
is	O
a	O
parody	O
of	O
the	O
GPL	B-License
.	O
</s>
<s>
Free-culture	B-Application
activist	O
Nina	O
Paley	O
said	O
she	O
considered	O
the	O
WTFPL	B-License
a	O
free	O
license	O
for	O
cultural	O
works	O
.	O
</s>
