Oh I love self harm that is one of my primary interests it look so sexy.
There is nothing that i woud find seriously disgusting.
But there is one thing which really turns me down - it is real depression and sadness.
I see no problems in any bullying torture or suffering as long as this does not break that person but if the victim loses desire to live that's where it gets ugly.
If someone commits suicide or self mutilates because of some kind of craziness anger stupidity or anything else that fine and sexy, but if that person is under the depression and does it because of some despair well then it is not really enjoyable.
One of the most memorable manga for me is where father is raping his wife with his friends and her little son gets also involved into all that but accidentally she falls on the ground and dies what makes everyone very sad.
or there was anime where one woman est raped but she does not fight back she just tell her rapist that it hurts while being very sad she gets pregnant and later she gets killed by the same rapist.
So if I was nonpunishable in the real life I could do pretty much anything to anyone without any limits but if my victim gets sad well I no longer can hurt it. If she curses me threatens me calls me names that's fine just more motivation to cause more pain.