Oh please. There are a host of websites dedicated to these things. There is no rejection. They simply ignore the problem.
Harley: Despite what folks say about them, they don't have a secret police and a SWAT team on-call. And I know over some groups whose necks I would cheerfully wring, they display decades of forbearance and patience before lowering the boom.
Yeah, they may not move as quickly as I'd like, but sometimes it's easier to rip up the tares if you let them grow a little (worst approach) or patient discussion and imploring may save a few before the rest have to be given the boot.
If you view the behavior with the supposition that it is uncaring, it'll look uncaring. But I think the data, viewed without supposition can be explained as much by patience and forbearance as by insouciance.