Actually, I don't think the contents of /r/creepshots are actually legal - or at least, not a large portion of it.

Upskirts, panty shots, and the such are not legally protected, even if they are done in public. As a street photographer myself I'm quite familiar with the difference.

Which is to say, much of the content on /r/creepshots wouldn't pass legal muster, let alone the morality test.