[s_kilk]

> If punishment has no measurable, positive effect - why do it?

But it does, the positive effect is in the mind state of the punisher, or the Type-1 people being discussed here.

Now you're right of course, the punishment does not improve the situation, but it sure gives these folks that little squirt of feel-good chemicals and that's what really matters to them.

[thatcat]

If the original problem was a lifetime of low self-esteem of the victim after being bullied, then it seems they have improved their outlook over the long term - rather than the ephemeral boost you imply.