I always thought it was because she/he wanted to confuse people. At least i was confused... and i still am, but that's just the norm. That and I can imagine if you say you're female on this site you will probably get constantly spammed and bothered about it. I don't know... call it a hunch. But I may be wrong.
Dogmeat
My user page has been a lil' lonely lately. Want to give it the pleasure of your presence and maybe even a comment?
Sensationalism
Of course I do!! <3