Do you really want to vote more than 240 times per day? That's one vote per minute for four hours straight - only the terminally online would ever want to do such a thing.

I was not discussing the content of slurs, but the process of HARD-CODING them into the software (especially only in English). Elsewhere PugJesus gives a fairly great explanation as to why a slur filter is not a great idea though - e.g. those people should be banned, not merely filtered, but not by an automated procedure and rather by a human being who can judge nuance.