It's important to highlight that SO mods remove very little. Almost the whole community can contribute and in my experience (as a mod) it's usually the enthusia

It's important to highlight that SO mods remove very little. Almost the whole community can contribute and in my experience (as a mod) it's usually the enthusiasm of non-mod users that causes the problems you're describing. They gamified community moderation. When you reward people for taking action, expect people to take lots of action.