Let's see. The holidays in general (Christmas specifically), my own birthday, the rap music industry and most of the mainstream material thereof, Half-Life (I think it's a bit over-hyped, and that's me being delicate), basketball, baseball, MMA, and a host of other things, I'm sure.
I've found its often more common these days to be chastised for not liking something that's popular and/or mainstream these days than to be chastised for enjoying something on the fringe. Maybe its because "mainstream" has become much broader and inclusive as of late, or perhaps it's my imagination.