Blaster has some good ones. My faves:
Piss Mop
Real Doll Owner
Fake Lawyer
Trick Baby (maybe add a whore name infront of it. ______'s Trick Baby)
blaster did good. the internet tough guy is my fave but it's not porn specific.
one the pipe missed that is my absolute favorite term...
undercunt
and don't get rid of human garbage. it should actually start the list and end it.