Freedom of speech is possibly the most important right in a democracy. Any sort of censorship is detrimental to the democratic process.
While I am not particularly amused by "funny" remarks about peoples physical attributes, their sexuality or how a "real" man should treat a woman, I think they serve as a very good givaway of the mental level on which the commentator operates. The best way to deal with people you think are offensive is to comment directly on the IRC on how you regard these comments.
