Cheap shit.
Edit: let me clarify, that is shit bikes that are also cheap. I don't mind great bikes that are cheap, but they are few and far between, most cheap bikes are shit so I tend to save my money and buy nice expensive ones.
Strangely i don't mind expensive bikes that are shit as in tetra terms they tend to be a bit off the wall and innovative, which no cheap bike can ever claim to be.
Tend not to have irrational hatred of individual brands, although some exclude themselves nicely by the above.