They've gone mad. I haven't read that forum lately, and only perused the link that you posted but someone was calling for banning the use of language like "R oman Protestant" and "New Church" which is an affront to Catholic Tradition.
And this absurd notion of "TradOut" is absolutely laughable. If you were raised in the New Religion and find Catholic Tradition, thus abandoning the pernicious errors and Modernist ambiguities of the Novus Ordo cult of man and adopting real, solid Catholic teaching, of course you are going to be seen as an extremist in the eyes of man. I have lost count of the number of times members of my family (Novus Ordo) have called me an extremist, a terrorist, "holier than thou", arrogant, et cetera -- just for saying that the only true religion is the Catholic Religion, and that all other religions are false and paths to Hell. This "TradOut" that QuisutDeus talks of is only applicable to cases where the inquirer into Traditional Catholicism has no access to a solid spiritual director or a church where he can obtain valid Sacraments (in other words, someone who's spiritual adviser is his laptop -- something which I am guilty of, and ashamed of).
That forum is turning into another Catholic Answers, only worse. I truly feel sorry for any person new to Traditional Catholicism seeking guidance at the site.