I am not a free speech absolutist, I think that you have the right to tell people not to scream stuff on your lawn. I think in the cyber environment though that it is better if we allow people to remove their own perception of people screaming on their lawn. It is more like someone is screaming on your lawn, but you and everybody else can block out all perceptions of them. So if you don't want them screaming on your lawn, you press a magic button and they vanish from your own perception without a trace, but other people can decide for themselves if they want to hear and see the screaming on your lawn or not. In the cyber environment we can give much more fine grained control to people and I think this is superior. I don't imagine a single forum with leaders and such, I imagine a shared forum-space where every user is the leader of their own perception.