Rasputin: I am also rather Chomskyian in defending all people's right to express their ideas, no matter how much they differ from my own. However, when we are on the site of other persons, with some rules or requests, we have to observe them, as they may have the right to ban us, because that is their own website (as you and me have the right to expel annoying people from our houses).
I think one can say whatever one wants only in his own website, or in a rather rule-less forum.