OldScratch,
Your points are well taken. Certainly, "strangling the forum to save it" is not effective... but--are the expectations the central issue concerning this forum's vacancy and redundancy?
I have said before that the concern at the heart of any standard here (and I absolutely agree, it must fit the context of UM—perhaps a change of forum title would be appropriate) is to weed out common knee-jerk sensationalism to allow a clearing for attempts at something thoughtful (which is really all one can ask for on a message board of this sort). There are no expectations for all posts to be of the specificity and argumentative form of, say, some of derbeder's posts, nor contain the "literary" scope of Nile577's.
What is, and I think should be expected (and at some point enforced) is a progression of thoughtfulness (whatever the starting point), as obvious as that sounds. Take the topic of eugenics, for example. If, over time, the considerations and arguments put forth in such a thread were dwelled upon and deepened, there wouldn't be a problem. Instead, the same condescending bombast is wheeled out every few months by the same posters, sealed off from discourse and questioning. That is not thought provoking, let alone "philosophy", but cheap propaganda.
If blatant ideological affirmation is what draws activity here, then there is little life to "kill" with a set of expectations.
If people are convinced it is a problem of moderation, than I (and likely derbeder) will gladly move along...