OK, I'll bite. Sides of this issue you might not be considering

do you need a woman to actually _tell_ you that someone is a sexist idiot if said sexist idiot, upon learning by accident that a participant in a open source themed chat is female, tells said female that females can't do open source and kicks her out? Do you expect the woman to come crawling in again (possibly on her belly apologizing for being her sex) when noone of the other attendants of the chat feels like telling the guy doing the kick he was being an idiot and to stop that?
I'll tell you my reaction. They can stew in their own bugs for all eternity for all I care, I'm not going to touch -that- project with a ten foot pole again.