Agree in general. How about Less Wrong in particular?

Well, LW is great for discussing a concrete problem if you manage to elicit some interest in it, both because of people's high general intellectual skills and because of low propensity to emotionally driven reactions that are apt to derail the discussion, even in fairly charged topics (well, except for gender-related ones, I guess). So, yes, LW is very good for this sort of reality-checking if you manage to find people interested in your topic.