I don't think it was shut down "on a whim" as much as it was you were already proved wrong several times by Marko,Rich, and Redworm.
Instead of continuing to post threads on here about how it is or isn't free speech why don't you take the time to look up the bill of rights and read it in full.
Like Rich said though, you have no right to free speech without repurcussions from the private citizenry. Let me give you some examples:
The KKK can march down the street of a city spewing hate, but if they walk in a business and the owner demands they leave, they must.
If you walk down the street with a sign saying you hate George Bush, that's your business. If you walk into a deli with that same sign on, you might be asked to leave and you have to comply.
This is Rich's "deli" and if he wants to close threads, ban people, etc it is not violating our rights. This is his domain that he runs and pays for.
I think it's kinda of a love it or leave it thing. You're getting shut down because your information is bad. Why not just let it go??