What is up with the porn hate?
I imagine it is probably a combination of disgust and/or strong objection to such objectification and exploitation of people. Some folks might also think it's immoral even though they look at it.
That being said, the items on the list I consider morally wrong are: buying and wearing clothing made of animal fur, the death penalty, medical testing on animals, and married men and women having an affair. I feel somewhat more strongly about the former three of the four than the last.
Interesting numbers though. Hmm...