More for the list, based on your point about groups: It's important to label speculations about the ill effects of actions based on stated emotions as speculations, and likewise for speculations about the emotions of people who aren't in the discussion.

Part of what makes all this hard is that people have to make guesses (on rather little evidence, really) about the trustworthiness of other people. If the assumption of good will is gone, it's hard to get it back.

If someone gives a signal which seems to indicate that they shouldn't be trusted, all hell can break loose very quickly. and at that point, a lesswrongian cure might be to identify the stakes, which I think are pretty low for the blog. The issues might be different for people who are actually working on FAI.