Hey smithisheaven,
I wasn't able to make to any of the clinics, and was only at the slide show and BBQ, but I didn't see a lot of bad attitude. I saw at lot of very positive and friendly people there, especially the people organizing the event.
From my perspective, anytime you have a group people that don't know each other, there is going to be posturing or cliques of people who happen to know each other...that is too bad because there are a lot of cool people to climb, and the best way to meet them is to just be friendly and outgoing. People who pack an attitude usually just lack self-confidence (ok, there are a few exceptions), and it is their loss that they aren't friendly. You're also going to have one or two that has a few to many drinks, as noted above.
I did meet some cool local people (local to the Leavenworth area), and from what I saw, it was a very positive event.
Anyway, you're lucky to live in such a awesome place. You should seriously considering changing your screenname though.