Since idiots decided that they'd ruin it with voice distortion. I mean, I absolutely love some screaming metal, such as Testament or Biomechanical, but it has a beat and good instrumentals at least. I can't stand Brokencyde, absolute garbage. RnB is ENTIRELY repetitive. Can't stand that either.
Hmmm, what else? Oh yes, generic, mass media promoted pop rock. Eg. Jonas Brothers and crap like that. AH. Fucking 'techno' that is just distorted repetitive thumps, trance that is a single repetitive and uncomplicated beat with maybe a few vocals from a black dude or a European sounding guy in there and people go nuts over it. Guh. Also gansta rap.