Hm... You say you don't get angry but you seem a tad aggressive about those who do, though.
I came across this blog because I was curious about the same thing; I never get angry ever. Perhaps I was born with this inability, perhaps it's a part of my PTSD symptoms. Usually I get scared and/or lightheaded instead of being angry. But this isn't because I "do something about it", nor are people wrong for being angry without doing anything about. It's just the way I am, and just the way they are.