One of the most crucial aspects of web community development are the rules and how they are enforced. Too few rules can lead to chaos but too many always lead to oppression and a dead community results. I have seen this over and over again.
I don't think I have ever seen a community with too few rules. This doesn't mean that they don't exist: I simply have never seen one.
If I were to give any community developer a piece of advice, I would give them this, taken from Machiavelli's The Prince: that "...the people ask nothing but not to be oppressed..." As a community leader, one must ensure that no oppression occurs be it from within or from without. Excessive moderation can be as bad as a troll and often causes as much, if not more unrest within the community. If God could limit His commandments to 10, why do you require 10 thousand? Remember that most of the rules you create for your community have no basis in law: you are simply creating them to govern how you wish people to interact with each other. Do you set up such rules among your friends? If you had a large list of rules for all of your friends to follow would they or would your circle of friends stick together? In the workplace, would a large list of rules governing how you may or may not interact during coffee break be useful?
In their offline relationships, people are governed by their common sense. While it is certainly arguable that some have significantly less common sense than others, it is just as arguable that a long list of rules can never "fix" those who are lacking in this area. Why then is it generally expected that online life would be any different?
In her book The Psychology of the Internet, Patricia Wallace looks at the behavioural practices of individuals online. She argues that anonymity allows people to do things and express opinions that they otherwise would not. There is a certain amount of truth to this. But does that necessitate excessive government?
I am convinced that it does not.
As yet, I have no argument on which to base this, other than my own experience.