The definition of anarchy is vague in many aspects. I am an anarchist, but that does not mean I will not obey rules and laws.
Anarchy is the sense that freedom of self is more important than the specific laws that impede them. As long as your freedom does not impede others or bring others to harm.
If you are confused by the definition of anarchy, there is another word - voluntarism.
I agree. Definitions can be vague. It's the same thing with "harm." That's what governments claim to be for. To protect us from those who want to harm us! LOL
For me it is simple:
Wil me doing A directly hurt someone? Will it indirectly hurt someone?
If no, then do not tell me NOT to do it!
We're living in the same world so pretty much everything we do affects others. The problem is not much with the principles behind having a government or king but rather the corruption that comes with power due to the nature of humans...