Puts down a long list of what PC really means. It just means being careful to keep from offending people with your language of classifying people into groups. You don't call people "loony leftists" or "crazy creationists" or even a "raging loony creationist" (unless you want to offend people) when simply using "leftist" and "creationist" will do.
Faith of course calls it "bogus revisionist lies" and completely misses the point, being one of the worst offenders on this forum, and showing that nobody is completely useless ... they can always serve as a bad example.
This argument between Faith and others has been going on for years, and I found it refreshing to read JonF's list of the actual meanings and usages for the term.
Edited by RAZD, : added example from a previous post