3.Do not require a huge amount of time from any single moderator. On the whole, we think the moderation system works really well, but often people disagree. Their disagreement usually stems from different expectations. They see a bunch of moderations countering each other. They see a comment moderated blatantly wrong.
Some humans are selfish and destructive.
Others work hard and fair. It's my opinion that the sum of all their efforts is pretty damn good. Certainly you aren't reading a wild and freewheeling discussion anymore, but you are reading many valid points from many intelligent people. I am actually pretty amazed. When moderators are given access, they are given a number of points of influence to play with.