I think that moderating on a whole is a very difficult thing.
Many times you KNOW something is wrong or have seen how it will end up down the road and want to act to head off problems. By doing so you create a new problem which is stifling a conversation which may at that point be innocent enough. If you don't then you've got a possible volatile situation brewing...
I'm of the opinion of letting things degrade down to pointless and THEN locking it up. Give people a chance to discuss, argue, and prove a topic belongs... if they turn it into a flamefest or insult ORGY, then nuke it and move on...
McUZI shot himself in the foot. Not because he was trying to prove a point, but because he is so passionate about things that he reacts before thinking things through. Although innocent enough most of the times, leading with your mouth tends to land you in hot water many many times. (Trust me I know!) Fault me for liking the guy, but he was also responsible for some of the best topics in here.
In the end we all need to protect ourselves and the site from each other if need be, because the internet is quickly becoming a policed state and one false move, one failure to catch some borderline conversations, one slip of the tongue, could end things for many people. This isn't over-reacting, I happen to know the ease of getting shut down by the now ever-present Secret Service, FBI, CIA, and a few other contracted companies who are "watching" the net.
Sometimes we do things we don't like, sometimes we screw up, all in all these guys are doing a hell of a job and I support them all. (Well maybe not Steve... Redskins fan... YUCK!)
]=)
-- GB