The Antifragile Chaos Monkey
I'm glad you brought this up, because I've actually been doing something about what a world filled exclusively with "private" communities would look like and I don't think the idea quite pans out. It would seem as if it doesn't quite make sense to call a community "private" if it isn't within the context of a larger "public". So, an ancap community would seem like it would have its own "public" property.
Joe, not sure who that remark was addressed to, but it didn't seem substantive.