Getting with people online has taught me a lot about what to avoid as far as pictures. Like when people have pictures of themselves leaning back with parts cropped out that would show how they were sitting, you know there's something like backfat being hidden.
When they're taking every picture with a shirt on? Man boobies.
Brags about dick that they never show? Tiny dick.
Area at base of ribcage in center of chest seem to protrude a bit? They're sucking in their gut.
\I notice that frequently people in this kind of site or social apps tend to apply "No pic no reply" rule. I don't really understand that, though. Often, when I attempt to greet and engage them in a conversation, they will ask for my picture, even though I use my own pictures in my profile, there are like of them, in my profile, but they still ask for my pic. What annoys me the most, occasionally, when I give them what they want, they will simply ignore me and stop replying.
My question is, is it really necessary to send our pictures before we chat someone, even if my only means is to simply look for friends? This makes me think that a bunch of gay or bi people only want to hook up or friends with someone's attractive. But then again, in social app like this, people can be anyone right? He may put up his ugliest picture but when you met him he turns out to be good looking and doing so because he's not a type of person who judges someone by their looks, who knows?
So why should they worry about pictures, especially if your only intention is to be friends with them? Can they just get to know each other first without asking for pictures beforehand? If you want to meet you'll eventually know what they look like in real life, really.
Their intention isn't to just be friends, but probably like friends with benefits. When they stop replying after asking for a pic it's because they decided they didn't want to be friends with benefits.