My only real complaint is that some of the groups I was in on reddit either aren't here, or are super small here. As far as the people go, maybe I've just been lucky but most folks have been pretty nice, and thus far I haven't really run into the extremist stuff some folks ahve mentioned.
I only go to Reddit now because of one or two forums that don't exist on here yet, But the more I see stories like this, the more I'm inclined to just say screw it and nuke my account.