We do NOT accept the following (this is our decision, please don't argue this):
Mallcore, also known as "nu-metal" by some (ex: Papa Roach, Limp Bizkit, Drowning Pool, Slipknot)
Glam rock (ex: Poison, Whitesnake, KISS)
Classic rock (ex: Led Zeppelin, Uriah Heep)
Progressive rock (ex: Yes, King Crimson, The Flower Kings, Spock's Beard)
Hard rock (ex: Guns 'N Roses, AC/DC, Alice Cooper)
Hardcore (ex: Earth Crisis, Converge)
Grindcore (and all its variants; noise, crust, etc) with little to zero metal influence (ex: Anal Cunt, Libido Airbag)
Punk (ex: The Misfits, The Ramones, The Sex Pistols)
Gothic rock (ex: Bauhaus, Sisters of Mercy, Fields of Nephilim)
Industrial (ex: Ministry, Rammstein, N17)
Cover/tribute/gimmick bands (ex: The Iron Maidens, Catch the Rainbow, The Great Kat), unless they start as such and eventually write their own music