Never attended an open source conference and from what I read (even before this article), I never will. There seems to be some kind of "drinking culture" required (of course, the consequences of drinking are usually _far_ removed from any culture). Drinking games, pubs and what not seem to be mentioned regularly. Could not be further from what I'd consider a professional gathering.
When sleaze described here is added on top, it just sounds awful.
Really feel sorry for the women that had to go through this crap.