Whilst i would never send you picks of my cock or tell you what i do with myself looking at your pictures, you have to understand that us males are visual creatures, and regardless of how many beautiful women may be on this site, some of us might find you even more attractive than those that are on here. We might actually be far more interested in your bits than what else is we can see here.
P.S. I'm not defending the disgusting messages you get i'm just trying to explain how the male mind works, and although the majority of them are fucked up, we're not all like that. Or we are, but express ourselves differently.