zlacker

Commenting is almost no-friction and there is an immediate psychological reward in getting your voice heard. This makes it extremely easy to knee-jerk. Perhaps you can A) make commenting cost more or B) delay the reward long enough to force a re-evaluation before the comment goes public.

For A you might try making commenting cost karma in certain situations.

For B I've got no ideas. I'm thinking about how I sometimes will write an emotionally charged email and then wait a day before sending it because I know I'm unable to think clearly. Emotions will have cooled by then and the email looks like it was written by a crazy person. There's not any way to force delays on commenting that I can think of since the articles and discussions here move so fast.