Agreed, this probably should have been put in Off-Topic. I'll duct tape my glass house together later on

It's interesting, Tony, myself and my business partner Wallace went snowboarding together yesterday and we got into a discussion about bulletin boards, communities of practice and how to keep discussions on-topic without a need for a dedicated human moderator.

Unfortunately, we didn't come up with any kind of answer. The best one could do would be to force a poll of the relevance of a certain topic, but many boards try that and the lack of good responses to the polling skews the hell out of the relevance anyway.