"Karma mint" is a great phrase.

I believe that anger is what fuels territorial defense, territorial defense is enough work that it needs some fuel, and that people need some territory, so there might be a useful distinction between the emotions which drive legitimate defense of self and others as compared to looking for conflict for the fun of it or to gain unfair advantages.

Maybe some of the discussion at Slactivist can be summarized as checking to see whether the angry person is looking for positive sum or negative-to-zero sum solutions.

The situation is made more complicated because a person can be genuinely abused and be looking for negative-to-zero sum solutions.