None of you dissing metal here know shit about metal. You're thinking of Grindcore and/or Nu Metal, they both suck balls and should die. When you say Heavy Metal is killing
rock 'n' roll, then your only right if you're thinking of Nu Metal, which is true; it is. But most of your rock 'n' roll is metal,
believe it or not.
Led Zeppelin(sometimes), Guns n' Roses, Metallica, Def Leppard, Black Sabbath, Megadeth, AC/DC, etc, they're metal. When it comes to the whole satan thing, that's black metal, and that IS in fact, screaming, most of the time. "Bad" metal is not very common. The only metal that appears on shitty MTV is again, Nu Metal, thanks to NU metal and Nu Metal only is Rock 'N' Roll dying.
Look into Heavy Metal before you define it, and you wont be considered "Stupid".
P.S To the guy who dissed Slipknot, your
absolutely right(Except for its
headbanging not "shaking"),They're Shit Heavy Metal) They don't deserve to headbang, they suck big ol'
Elephantitis infected balls.