When you post to a privatly owned website (which the MudCat Cafe is)

"You agree that the webmaster, administrator and moderators of this forum have the right to remove, edit, move or close any topic at any time should they see fit" should be a given and not even need to be stated.

Just as when you are on private propertie the owner has the right to ask you to leave - and anyone who thinks differently is kidding themselves.