Honestly I don't go to concerts to jump in the pit either.
We had a problem with idiots coming to shows and straight kicking people in the head while fighting invisible ninjas. It was over the top apparent they were doing it on purpose.
I actually thought the way it was handled was pretty sweet. Group gets together, everyone in said group shows up to show with a Sharpie and just holds it out. Fucks up your shirts, gets all over your face and makes you look like a moron whenever you feel you need to slam bump your body into people who are just trying to enjoy the fucking show.
Don't get me wrong, dance the shit off if you want to. Do a pit up, but keep your fists and feet to yourself asshole.
Honestly I'm amazed these kind of lawsuits haven't been filed more often.