i'm not joking, the band has acknowledged the problem with their fan base (it's largely why they broke up), and my experiences with rage fans are not unusual.
it wasn't just rage, either, it was that whole style of music and the entire culture around it. when they did the neo-woodstock thing in '99, a lot of those bands played and there were people getting beat up and raped in the mosh pit.
but, i mean listen to it for five minutes and tell me you think you're going to get a different outcome. it's obviously designed to make people violent. the intent is to get people worked up to go smash a bank, i get it, but it didn't work out very well. they just got mad and lashed out at whatever they could.
http://www.mtv.com/news/1592211/rage-against-the-machine-fight-the-good-fight-their-fans-fight-everyone-else-in-bigger-than-the-sound/