For me when people mention "PC people" or "PC statements", it's not the things said that is important, only the demeanor of the people saying them. It's always people who are quick to judge and constantly look for "safe" things to be fanatical about or against. It's people who like to get emotionally riled up about stuff but really don't have much going for them in their lives.

I group them together with moralists. There's nothing wrong with being politically correct, but the term "pc" doesn't really refer to the statement being made does it? Or am I totally wrong here?

edit: In the BDSM crowd, I always find them, fat and/or nerdy; they're standing in the bar at the fetish party debating loudly about stuff they'll never experience, while all the fun people are doing it in the play rooms.