The reason is that mafia disregards one form of governance and produces a semblance of governmence in its own right.

That is why I count them as anarchists. Anarchy is often described as an alternative way to govern with the main difference that everybody is participating voluntarily. After all most people are not born into the mob. "Sons of Anarchy" is also just about a biker gang, which I would include under the Mafia umbrella or do you consider biker gangs are a special form of mobsters?

I think we have similar regards on Anarchy in general. I also did not want to come across like I think Heroes and the Mob are the essence of Anarchy. Just two ways that anarchistic ideals (mainly the hatred for government) have manifested into very different things with very different perception in the public eye.

I would suggest that the 'community-level' is as good a level as any.

Same and it is seems to be a creedo for anarchists as well. It is funny how Communism was heavily influenced by a Jew-hating Anarchist. https://en.wikipedia.org/wiki/Pierre-Joseph_Proudhon