I've seen it several times, and one example is below, but I'm seeing threads on a semi-regular basis that start as an intelligent discussion of the topic at hand, and then a moderator sees some type of post he must sensor, which seems to result in a majority of the board seeing this moderation as malicious. This tends to result in a riot.
How can we have an intelligent discussion about bicyclss without havinc so many threads meat this same fate? Some regulation is certainly good but over-regulation is always a disaster. I see signs of over-regulation from where I stand. We must do something different before bicycles become contraband here.