Thanks, Neko.
<I've also known traditionalists whose company was a pleasure.>
So have I. It may be a cliche, but some of my best friends ...
But the folks we've been hearing from here are not Catholic traditionalists. They use some Catholic words and concepts, but they do not know, understand or believe the tradition. When they try to sing a Catholic tune, they are off-key.   
<That said, the "fringe" exhibit certain traits: ostentatious religiosity, anger, fear, paranoia, homophobia, political fancifulness, and, in the worst cases, misanthropy and detachment from reality.>
These are the characteristics of religious fundamentalism across various religions and denominations.  Fundamentalism is, in many respects, not so much a theological deviancy (although it is that) but a psychological deviancy.
<<"[Baum] was the most charitable and optimistic person I've ever known," said Hinsdale.>>
Yes, that does speak volumes: more than theology texts, CDF statements, or encyclical letters.