After giggling at several pages of trolling, I'm going to stick to the topic:
I voted maybe. I'm an anarchist at heart and I can't really say yes or no. Some people might want it, some people might not want it. I'd rather make it a case by case basis. If there's irrefutable proof, cases like murder, rape, or any sort of permanent damage (be is the loss of a limb or psychological damage) should fall in the category where the victim or the closest relatives can decide what to do with the felon. Unlimited. Including 50 years of non-stop torture. Of course, you have to fund your own sentence, but we'd kindly provide you with a gun if you're willing to pay for the bullet. It's in your own hands. You want to be forgiving and let the guy walk free. Sure thing. But if the dude commits further crimes, it's also your responsibility.
I honestly hate the idea of having imaginary entity responsible for executing any sort of judgement on a person. The fact is judges and juries are responsible for what happens to a given criminal and this magic entity removes this responsibility out of them. That's just wrong in my book.
Of course, as it is the case with any sort of 'justice' I'd still be worried about what can be considered irrefutable proof. The last thing I want are innocents or accidents falling into major penalties.
In fact, I think most crimes should never ever have jail time. The punishments should always be either financial or rehab of some kind.
As for the rape versus murder thing. I consider rape way way worse than murder.