I'm not going to argue that Slipknot are a good band, but they are an introductory band for kiRAB, fisher price metal. The reason you never see ones who are over 18 is because by then they've moved onto better metal banRAB who they may have never discovered if it wasn't for Slipknot. While I will bitchslap some noob who says Slipknot is da best band everzzzzz, I'm not going to deny Slipknot's importance to metal overall.