Do you feel the moderation over there is enough though, even on the "nicely moderated places" that you mention?
Compared to other communities where admins/mods delete users' comments to a much higher frequency relative to Reddit and freely edit or move unfitting submissions & comments, I've always felt the lack of moderation on Reddit for the most part has been the reason for attracting trolls and users making hateful comments.
And the thing is, Reddit looks to be a very hard place to moderate as large number of Redditors seem to become very mad when heavy moderation happens (seeing from the large # of "I thought this site was all about freedom of speech"-type comments when r/jailbait got banned few months back).
When the lack of moderation attracts all those characters who post "shit", filtering via voting just becomes useless as you mention in your other comment.