comment help?

sometimes i wonder about comments on blogs. i like comments, i leave comments, although i'm more inclined to comment on smaller blogs than on big mega blogs. anyway, a little while ago adam had a good(ish) dialog going on about comments on the bee's website. in that post, adam talked about how he liked the interaction and community that is created in the beehives comments, and i tend to agree.

but today, as i was reading a few posts, i got a bit annoyed. there are some commenters that repeatedly leave sexist, homophobic, or other comments that just aren't helpful to discussion. i know that all beehive comments must be approved, so they don't have to approve these comments. should they?

i know there are a-holes out there. i realize there are sexist people out there. but what are the contributing to the blog? why do someone have to come on to rebut their annoying, unneeded comments?