[SmellyGeekBoy]

Trouble is, without strict moderation the stuff that floats to the top will be the memes / jokes / lowest common denominator echo chamber opinions, not to mention the people trying to game the system. Look at most of the default subreddits, for example.

[acqq]

Have you looked at the most of the top Amazon comments? They aren't as bad as you'd predict, at least for the books I'm interested in.