I have a friend (shut up, I do too have friends) who is on one of those dating sites, and is female.
Before, when guys would message her and she wasn’t interested, she’d ignore the messages. And then the guys would send her pissy messages.
Now, when guys message her and she isn’t interested, she replies and thanks them for their interest, but says that she doesn’t think they’d be compatible and she doesn’t want to waste their time, and wishes them luck finding someone more compatible. And then guys are sending her pissy messages.
Which leads me to one inescapable conclusion:
Guys are fragile babies.
(and before anyone “not all men”s me, I, too, am a guy. which means I, too, am a fragile baby. it’s called “recognize and overcome” not “ignore”.)