It’s a little disturbing to see people—especially Debian developers—expressing opinions like this, this, or this. Thankfully, there are also people expressing opinions like this, this, this, and this to counter it.
It’s bad enough trying to argue that opposition to sexism is "censorship", but just claiming that "Of course we are sexists…Love it or get the fuck out of there." is just idiotic. And saying that lesbians "are compared to a threesome quite favorably" isn’t sexism is just ridiculous—unless you actually believe that lesbians exist for your own pleasure (I’ll leave you to decide just how ridiculous this is); likewise, it’s not "talking about sex" that’s offensive but treating women as if they exist only for the benefit of men.
Debian is meant to be for everybody—regardless of race, gender, sexuality, or anything else at all. However, if your behaviour makes it more difficult for other groups to contribute (i.e., because you’re a sexist arse), then that’s just not acceptable, and if you don’t like it then that’s tough.
(I’m not on Planet Debian, where the argument was taking place, but I am on Planet Debian Community; maybe people to whom this applies will see this, maybe not, but I felt the need to rant anyway.)