Never understood the whole moshing-thing. Before some A-holes invented that shit you could just jump around in the pit and have fun, instead of having to keep your guard up expecting getting punched, thus getting distracted from the show.
And it's mostly those dumb-ass lowlife punks with spiked bracelets that go all hurricane in a pit, truly intending to hurt other people. That just pisses me off and ruins my evening, while a concert can be so much fun when there is some mutual respect in the crowd.