Joel Johnson, at Gizmodo, engages some of that site’s commenters in a way that I would recommend to most sites:
It seems like every so often the comments at Gizmodo fill up with entitled, half-witted thinkers, like a boil taut with ignorance. Even the least pointed opinion by an author ruptures it, leaving us dripping with wet bitterness. It’s time to give the commentariat a good lancing.
A hyperlocal news site that I read – ARLnow.com – came to mind when I first read this, but really, this is advice for the whole Internet. The world is filled with stupid people, and not every opinion deserves a platform.