I recently got into a post tennis match with someone from my own network. I kept waiting for the big slam down... but it never came. There have been threads started that were closed even as I was reading the posts, that I wanted to take part in. A few times I was in the middle of a post when the thread was closed. I have been on a thread when warnings have been given to others. So sometimes I have wondered why some are closed without warning.
With some posts, they start out as an argument, so I suppose they decide to nip it in the bud from the start. A line has been drawn, and I do accept the moderators decisions. If they waver for one, but not another anarchy will eventually ensue. We do not have to like all their decisions to agree with the policy. Perhaps an area could be created for such things, but who would moderate, how would moderation be handled, how much space would it require, etc... It just can't be done.
So I guess I agree with you, but only to a point.