I noticed some real egregious reviewing going on also.
I was thinking that maybe there should be some facility to "flag"/"vote on" the reviewer and the specific review, by clicking on his name on that review and a dialog comes up, and ultimately building a rating for that reviewer based on commmunity input, that only the moderators could see. Eventually, this might give them some data to correlate to bad reviews and they could implement a heuristic to use that. For example, they could use it to influence the audits given a particular reviewer. I don't think I'd want to go to direct autobanning though.
I'm sure with my contrarian views, I'd get tagged a lot, but I'm comfortable with the mods (as a group) reviewing the extreme cases and making decisions based on that.