I've seen this kind of behaviour before, back when I was still in Nam.
Ordinary young men who spend too much time being surrounded by other men, in small spaces (studios and such) start becoming attracted to their comrades. Soon they start frequenting websites and forums posing as women or pretending to be having a competition. The real story is that they want men to post their pictures so they can jerk off to them and collect the come in a cup to drink later.
We called them pic-collectors. Disgusting creatures they are. The only way to get rid of them is through banning or a**whipping.