I'd say that for a band to technically be deathcore the vocalist would have to employ pig squeels or guttural growls, whereas the vocalist in SlipKnot shouts more than anything else. However, they could quite easily fit on the "lighter" end of the deathcore spectrum. Either way, I still consider deathcore to be metal. That's perhaps more a point of opinion than anything else. Sounds fair to me. Always did remind me of In Flames if they tried deathcore. Slipknot always seemed fake to me though. Sort of like they're not being honest with themselves. What do I care though? Rest of my posts will be trolling people in this topic anyways. The only -core I consider metal is grindcore, but that's probably because where I live. Wow. Not even Nintendocore? Aren't you the little elitist. :) And just wondering, what do you define metal as? Or, why don't you consider the "-core"s to be metal? I'm not going to bother getting in a debate with you about it, because I already have my mind pretty well made up on the subject, but I'd be interested to know your reasoning.