Interesting. Are there any reasons anger is useful aside from motivation/Actually Doing Things? (Though that's pretty big on its own.) Also, are you sure your judgement isn't affected by anger? Even when it's not intent on harming someone, it's still a strong emotion.
As a minor, anger is pretty much the only way I have of creating negative incentives for my parents that doesn't automatically lead to me being punished, because anger is not seen as purposeful retaliation in the same way that other things that annoy people are. (I can't fine my parents, I can't refuse to associate with them, and I can't damage their reputation within the community without breaking community social norms.)
Anger is also really great for signaling that you consider someone else's behavior extremely unpleasant. If I just tell people I'm upset...
This is the public group rationality diary for January 16-31.
Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating.
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