[nousermane]

Keyword-based moderation has some pretty bad failure modes, yeah. False-positives from context, false-positives from different meaning of the same word...

But what alternatives are here? "Report" button, and human reviewing each and every instance of it? We've all heard horror stories about fb moderators burning out and getting PTSD from this kind of work.

[Levitz]

I'd say in a site like Reddit where every comment is voted on to change its visibility to begin with, there is no need whatsoever for such a tool.

The amount of overmoderation on the site is ridiculous. You have the site admins, then the subreddit mods, then the moderation by the users themselves, then the automatic stuff. You can still block users and filter subjects.