I, for one, have never been bleeped (as far as I know) - and I have used most of the "offensive" words. I think it's more about obsession than the words themselves. If you call everybody a "racist idiot" you might get bleeped. But thanks to my immense vocabulary I can call somebody a racist idiot in several different ways. It makes for more interesting posts (whether I know what I'm talking about or not).
"I call that bold talk for a one-eyed fat man!" -- Lucky Ned Pepper