Hm hm, I see, you're quite the sadist huh.

Personally, straight guro/snuff is a bit too hardcore for my tastes, but I can comprehend the appeal....plus, I get adventurous and tried out stuff like "Punisher"
http://www.holylolikingdom.net/forum/index.php?topic=1240.0 before. (Well, I stayed for the story/morbid fascination more than the H appeal, but I think you'd enjoy the lighter stuff in it.)
Plus if you're into vore, some of that was posted awhile back too. I think I just like dark stories in general when I see them, stuff like Yume Nikki and all that really draw me in~

Since it basically means that I wouldn't stand back if I see a loli being abused, it's probably on the opposite end of the spectrum from snuff.
I totally get that too, sometimes certain doujin go too far and make me abandon ship and stop reading partway through. Depends on how serious/realistic it gets Q_Q