Eh, at least the thing worked straight. 'Ever played Pangya? It had a similarly moronic chat filter, but it was badly optimised and responded to unknown characters as profanity. The problem there being.. they didn't configure it for the differences between European and American English character locations in the fontset. And it muted you after three flags on the filter.
Really though I think a lot of these issues come from the filters being coded for asian languages, so they don't really build them to accommodate English cuss-words flexibly or so.. maybe. 'Least that's how it used to be I think.
Anyway, yes, it's toggle-able, so yay.