I was meeting ladies in AOL Chat Rooms as early as 1993. It was interesting because sometimes I would meet ladies looking to date and go slow. Sometimes, I would meet ones who wanted to bang and never see me again. Sometimes, they were pros who wanted to get paid for sex or sugar babies who wanted an arrangement. Initially, chat rooms were so disorganized. They quickly became more organized so there were ones for specifically what you wanted. But pros would lurk in rooms not designed for them lol. I once met this hot lady who let me come over and bang her, and not until afterwards she asked if I was generous.

As women are generally the gatekeepers of sex in western society, this creates a certain dynamic.

Most women also aren't aroused or validated when they see a dick pick.  A female friend told me once she'd rather get a Pic of chiseled abs or biceps because a hot body is a hot body and a random dick without context looks either disgusting or awkward (her words)

Whereas, when men get unsolicited tit or pussy pic, we feel validated/excited since it's the whole "she deemed me worthy" line of thinking. and well, we also get aroused by female breasts and female genitalia..

I just find it interesting how these typically have opposite effects - I literally don't know a single guy who'd say nudes sent to him by females were disgusting or repulsive. Whereas, most dick pics are classified as such but guys don't get the memo and still think women want them for some reason.