I don't know why so many people do that, send nude pics of themselves to one of these guys. Actually I do know why they do it.
In their own wild and crazy mind they believe that whatever guy they send it to will fall madly in love with them and start exchanging sexual messages between each other. When the fact of the matter is that 99.99% of the time is the complete opposite of that.
Cause even if the guy you send your own nudes to is gay, it doesn't mean he'll be accepting of that. Especially from a stranger who is typically old enough to be their father and looks nothing like the hot guy who's receiving the content.