I'm becoming increasingly convinced that the instances of sexual harassment, overt or subtle, that certain of the squeakiest wheels are being subjected to, is intentional and not merely a reflection of the inherent nature of open source (or technical) conferences. That it, it's looking like Valerie Aurora and a few others have made a name for themselves as being particularly sensitive to this issue, and are being deliberately "tweaked". That it, guys are doing it just to get her goat.
I have been to numerous conferences both technical and otherwise, and haven't heard of or seen the kinds of overt harassment Ms. Aurora speaks of. And while the chances of such things happening are generally assumed to increase with the volume of alcohol being consumed, that doesn't really seem to be a factor here. In fact, having been to many hundreds of bars and large, alcohol fueled parties, that kind of behavior even in such situations would have been unusual, and would, if taken to the lengths Ms. Aurora describes, have resulted in a serious row.
Ask the question, if Ms. Aurora wore a shirt proclaiming "I won't stand for harassment from rude males", might things would get better or worse?