There's a difference between hurting someone accidentally, and hurting someone purposely.
In the acts of revenge that you've alluded to, you've deliberately caused someone pain. Can you prove, to the extent that there is no doubt whatsoever, that those people
purposely hurt you?
If you can't, you're running a risk of
purposely "sharing the pain" someone who hurt you
accidentally.
And if you can prove it, why not just turn the evidence over to the police and let them handle it?
It's not about finding pleasure in making another suffer, it's about taking pleasure in getting even, aka equal fairness.
You think there's fairness in revenge?
Explain the fairness in the following scenario:
The teenager down the street deliberately sets fire to your house, and burns it to the ground. What do you do in order to "share the pain", "get even", get "a kind of fairness", or get "equality" with this teenager.
I'll give you the benefit of the doubt that you can actually
prove with 100% certainty that it was the teenager who did it, and
prove that he did it deliberately.
What's the fair and equal way to share the pain with the teenager?
I'm guessing that you'd burn
his house to the ground.
There's
no fairness in that action. Because in burning down his house, you've also burned down the house of his parents and siblings. And unless
all of them conspired to burn down your house, you just got revenge on a group of people who are
innocent. There is
no fairness and
no equality in what you did to them.
Revenge doesn't imply selfishness.
You're lying to yourself.
Here's a
real-world scenario:
My grandparents were murdered by two robbers who were trying to break into their apartment. While it wasn't premeditated, it was deliberate.
If you were in my shoes, it sounds like you'd shoot them and take pleasure in getting even ... and that's purely selfish.
My grandparents had a brother, two sisters, three sons, two grandsons, three granddaughters, a nephew and two nieces. There were two robbers, and only one of them pulled the trigger. There aren't enough robbers to go around. You would selfishly get your own pleasure from revenge without thinking about all the other people who were
equally hurt.
And if you think the extended family gets equal pleasure from
you shooting the robbers, then you should get sufficient pleasure in letting
the law take care of getting justice. (In reality, punishing/killing the guilty doesn't allow anyone to feel at ease. Real closure comes from within.)
At least
I.S.L.A.M617 is willing to admit that he's just seeking his own self-gratification. As monstrous as it is, his belief is internally consistent, while yours requires that you lie to yourself about your own motives, the impact of your actions, the feelings of those around you...
Of course, if I was living in a lawless society and had
I.S.L.A.M617 as a brother, I'd put him down like a rabid dog, purely as an act of self-preservation before he got us all killed in a sick blood feud. He clearly puts his own self-gratification over anybody else's well-being, including his family's. In a lawless society where community is everything, that attitude is a liability to anybody close to him.
In a modern society, I'd tip
I.S.L.A.M617 off to the police. When he got out of prison, I'd kill him in
self-defense before he could get revenge against me for sending him to prison. There wouldn't be any pleasure or gratification in it. Just painful necessity.