I know a few people who LARP (I'm not going to knock it, just not my thing), and they've asked me to come a few times. My usual response is 'No thanks, I'd rather play paintball. Our fake weapons are WAY better.'
But, yeah, some airsofters are REALLY hardcore. Personally, I'm glad for it, it gets those people out of paintball. Not saying they're bad people, or that airsoft is a bad sport, but people that don't understand paintball see these guys and automatically think we're all like that, giving us a bad name. Now we're just passing the bad public image buck.