Its a party with technical talks to listen to while you pre-game.
Once the talks are over there are defcon sponsored concerts, a handful of events at the conference venue, and events aimed at defcon attendees all over town.
Sure there are talks, but kids don't run away from home to attend Black Hat Briefings.
So that changes the situation where some people don't want to be grabbed/touched/propositioned?
I'm just asking if the problem is the conference, or the parties, or if they're indistinguishable. The OP says that this boorish and unacceptable behavior is stopping women from attending the conference. And that it doesn't happen at other hacker conferences.
http://www.schneier.com/blog/archives/2012/08/sexual_harassm...
DefCon is a party.