I like to think/hope it’s a selection bias, same as the comments after a news article* (which I’ve long since taught myself to ignore). It’s a self-selecting honeypot. I’m not sure whether having more good-but-otherwise-quiet people spending their time making rebuttals on Twitter is really the answer, although I don’t have a better answer (nor a Twitter account).
Previously:
*BoingBoing excepted, though it isn’t news per se. (And it’s actively moderated.)
