+1 for the high latency idea. I recently witnessed a really bad screaming match on an NGO mailing list between a bunch of anti-vaxxers and, for lack of a better

+1 for the high latency idea. I recently witnessed a really bad screaming match on an NGO mailing list between a bunch of anti-vaxxers and, for lack of a better term, the reasonable people. Emails were flying at a rate of 1 every few minutes for long into the nights. What ended up solving it was appointing a moderator that has to approve all the posts beffore they go out. They don't actually block any, they just have to press the approve button. This meant that it usually takes anywhere from half a day to 2 days for a post to go through, so people started thinking a lot more about what they posted and what they read. It became not only slower, but a more civilised and though-out discussion.