This is kind of an offshoot of the "most overrated bands" thread. We've all had pop culture works or public figures that we hated mostly because the overzealous superfans were really annoying. These are things we don't like anyway, but the fans turn what would otherwise be indifference or mild dislike into hate.
So...who or what do you hate more than you would otherwise because of who else likes it?
Here's my own list to start us off:
The Grateful Dead
The Big Lebowski
Lord of the Rings
The Boston Red Sox