Facebook. I have an account, it exists, technically. But the amount of crying, conspiracy theories, and the Yahoo-news level of political discourse (if you're not aware of this, go to the front page of yahoo, click on something vaguely-political, and then read the comments. I'm sorry) makes me glad my account exists only for logging into websites I'm too lazy to do otherwise.
Profession-based reality shows. You own a pawn shop? Good for you, I don't care. You drive a truck? Good for you, I don't care.
Pop music. It's bad, it's always been bad, and if it's any good, it'll get played as something other than pop music. Also, you cover yourself with meat to draw attention to your bad music? Good for you, I don't care.
YA Fiction. Oh dear lord does YA Fiction have a massive hatedom considering how easy it is to avoid.