Porn pet peeves:
German porn - over dubbing. "das is gud, ya" <- voice of a dude who is clearly not having sex. sucks because they usually have good new ideas for the acts themselves
Japanese porn - blurring genitals. you can have 40 dudes cum on a girl's face and draw an octopus raping 8 women at once, but you can't actually show it?
Anal in general - seriously, who wants to see that? a dick in a hole where shit comes out. It's basically gay porn with a woman pretending to like it, or even worse, ass to mouth. nasty.
Black dicks - not appealing to watch at all
Girls getting slapped in the face - not cool.
What are yours?