Well, it's worth being a little careful here. Saying dismissive things about an outgroup is an effective way to present myself as a higher-status member of the ingroup; that works as well for "us intelligent people" and "those Mensa dweebs" as any other ingroup/outgroup pairing. Which makes it hard to tell whether I'm really signalling intelligence at all.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
(I plan to make these threads from now on. Downvote if you disapprove. If I miss one, feel free to do it yourself.)