Well, I'd say that Parson DEFINITELY knows that he's broken the profanity filter.
Quote Originally Posted by Parson -- Page 18
Wait... What is this "booping" boop? I can't say boop?
Therefore he knows when he's being filtered. If he isn't, it's safe to assume that he knows that too.

Still, interesting how there's exactly one obscenity in the entire book, and it's the last line...

I think that we'll get to learn a lot more about how Erfworld operates as things start to get broken...