Yes, non-aggression is absolutely vital to human existence in a post-capitalism, post-state world.
No. Nor would it be tolerable to indoctrinate children in national factory-dyslearning facilities (read: schools).
City? No thanks. Cities as you know them are an unsustainable cancer of this planet.
You state you are against violence and coercion but I await any coherent explanation of how distribution of resources will be achieved without it. I have indeed watched and read much of the material that you have been promoting and don't see how violence would not be mandatory as part of your structure. Notice how I have been framing my governments with unanimous agreement in anarcho-cap/anarcho-collective governments. If you don't have unanimous consent with any decision or policy like you do with Bitcoin than you are introducing violent coercion into the framework of the government.
How do you eliminate this institutionalized violence?
You are sidestepping the question of creating a test case example.I already mentioned Dunbar's number and the possible ideal community being 100-250. Why not get together with some of your Anarcho-communist friends and form a town, association, group , or whatever you want to call it as a test case example to show how effectively your ideas work in reality? Bitcoin is a test case example that is working why not follow its lead and do the same.
Do you need help finding like minded individuals like yourself to accomplish your goals? I can help.
Or is this an issue where you know that such a system wouldn't be feasible unless their was a certain amount of participants to make it possible? How many participants is needed for your test?