Piq squeals annoy the living fuck out of me. I don't care if a deathcore band does it once in a while, I might cringe for a little and that's it, but overdo it and I'll immediately lose all interest. Despised Icon is an exception for me, though.
I don't hate deathcore, I think it's pretty badass. Though, unlike most of the deathcore fanbase, I don't dub it as "grindcore", I know and love the classics like Dying Fetus, Death, Opeth, Suffocation, and Cannibal Corpse, and I don't like to wear skinny jeans or have emo hair. Bands like Bring...