I am not sure why someone who is not a genealogist would want to pass himself/herself off as one, but here are some surefire signs to help spot any potential impostors:
A genealogy impostor:
Thinks a Flip-Pal is someone who helps a gymnast practice.
Thinks Tom Jones the Rock Star is a singer.
Thinks a “Keep Out” sign at a graveyard means what it says.
Thinks Fold3 is a brand of laundry detergent.
Thinks Samford might be a school in California.
Thinks pedigree collapse is caused by really big storms.
Thinks an online tree is, well, you know, a picture of a tree on the Internet.
Thinks a brickwall ancestor was a mason.
Thinks naturalization is what happens when you stop dying your hair.
Thinks that genealogical research has something to do with shaky leaves.