Yeah, I've run, hrm. 3 (no wait, 4) characters up thuorgh the LFD tool, and I'm still not entirely clear on when I can and can't kick someone. I prefer it when I'm the tank because I can stop and keep the group out of a fight long enough to kick the dead weight who is still back at the start of the instance, and I think I got a internal reputation on my worgen druid coz I can't kick people for the first 15-20 minutes of the dungeon now. My Tauren druid used to be able to kick people after the first fight. I dunno. I'd love for LFD to get integrated with Real ID so I could play with my friends on other realms directly. I still like LFD, and I really need to get my Tauren up to 85 so I can see the new content, but I think I'm stalling for 4.0.6 now.