What gender is this person?

Yes.

No and/or maybe.

It's a female anatomically.

Agreed. Actually a rather pretty feminine face.

Why do you ask? Are you considering dating her/him?

Those are girly arms. If the the picture is on a page headed "Lesbian", why bother asking us what the gender is?

Is this some kind of perverted thing?

Some men have delicate features, but I was also looking at the entire room.

Guys, why the question if the poster wants to date this person? NOYB.

Maybe the poster is the person in the picture.

At a glance, it appears to be someone who may be identifying more with the sex they were not born with.
That's all.

Yes, that was my thought. It's a female trying to look male, but it's hard to fake an Adam's apple and this person has a very smooth throat.