In general I agree that the mods and regulars have been getting more militant (particularly with locking and moving topics) and I don't really agree with it. Don't think I, personally, have been too bad though, except for a couple of posts, but I'll keep an eye on my posts for a bit.
I also agree with your points on frivalous comments. Used to really annoy me, particularly when they are blatantly an attempt to change a person's ranking (not wishing to name any names, but one of the mods was particularly guilty of this at the beginning). Who cares about a ranking anyway? I'm personally a bit embarrased about my Addict ranking (need to get more of a life ;-)) and I don't think I've posted too many frivilous comments, certainly not when I first joined.
However saying that when you hang around the board a lot you do get to know certain people's styles and the feeling of community is created by some of the frivilous comments. I'd rather have a friendly board than a boring set of instruction manuals.
Anyway, it's been an interesting thread that's distracted me from my otherwise dull day at work.