There is an effort underfoot to filter stupidity from Internet discussions. Seriously. Although it sounds like it could be a headline from The Onion, Gabriel Ortiz and Paul Starr are actively collecting a corpus of data in the hope that some Bayesian analysis will generate a reliable tool to intervene before a commenter makes their stupidity public. StupidFilter got BoingBoinged last month without much reaction but popped back up in the blogosphere this week with some ferocity.