> I think that inflicting suffering on vicious wrong-doers is morally praiseworthy even in the absence of any deterrent effect. Deterrence is a happy byproduct, but the fundamental point of punishment is to balance the scales of justice. In my Hitler-on-an-island thought experiment, for example, I maintain that the morally correct action is to make Hitler suffer as much as possible. Though you can’t make him die twenty million times, you should try your best to approach that ideal.
However, something is off here. They don't so much think that punishing wrong-doers is right; I suspect, since no reasoning is given, that they feel it's right. I'm no better, I don't agree with redistributism just because I don't feel the same, but I do feel that suffering is bad.