I find that mods who are heavily invested in a community tend to be worse, doing things like getting into arguments with users and then banning them. Obviously

I find that mods who are heavily invested in a community tend to be worse, doing things like getting into arguments with users and then banning them. Obviously you mileage may vary, but most of the times I've seen this happen it's been used to kneecap mods I'd consider to be "power tripping". /r/linux is another example.