The salvation forums sprung to mind for me, too, as an example of a place with a lot of rules, that directly or indirectly leaves to a hive mind, groupthink mentality. There was a blog post out there from an active salvation poster who lamented that, for all the rules the forum had in place, none of the rules could actually lead to a troll getting banned, so long as the troll were to avoid the obvious infractions.
To me, rules set the boundaries of discussion. They tell you the places that you can't go, that are off limits. But the space inside of the boundaries is still near limitless. Rules aren't very good at setting direction, imparting a vision, or encouraging intelligent, thoughtful discussion. They're better at telling us what not to do, at telling us what kind of things will bring upon enforcement. Again, if I could put forth just one rule, I'd want it to be "Don't be a dick". It's clear what that means, but it's purposefully broad enough to encompass any kind of trolling behaviour, whether or not it's something that's obvious harassment, or something more subtle and insidious.
Beyond that, though, I don't much like the idea of having too many rules. This forum is as good as it is right now because of the quality and thought behind each and every post. The signal to noise ratio in this group is way, way beyond anything I've ever observed, so much so that I feel the need to read all the posts. But how do you set a rule for that? How do you enforce a blatant law that states, "No mediocrity"? How can we encompass in a rule that posts should be thought provoking, that respectful disagreements are not only allowed, but encouraged, that out-of-the-box thinking is the de facto form of currency?
I'd much rather there be a brief mission statement from our fearless leader, Jason, to guide the group down the path he's laid out for us. More important than that, though, is the example we all set for new and prospective forum members. It's amazing to me that Jason's little forum has blossomed so quickly, and I'd like to think his high quality of posting has attracted a similar contingent of like-minded, thoughtful cube designers, like bees drawn to nectar. Now, it's possible that this forum will grow large enough to reach a point where a more rigid, firm structure is required. But I'd rather let this place grow organically for as long as it can.