I'm not trying to rationalize this, but have you really never encountered someone who is inconsolable when they hear someone cuss?

The reason a lot of social network sites censor swear words and other words describing violence, is because they get inundated with complaints from fundamentalists who get offended by language, as if there is some spell being cast on them from afar.

And what I mean to say is, this is the motivation behind the censorship - because fruitcake butterflies think language is going to hurt them.