I can't see these "societies" as anything more than toys for rich people. They simply aren't real. Creating a real society with so few people just doesn't work. You have to rely on a lot of input to make the society work which means you are defacto relying on the external structures to make your utopia function.

These are nothing more than going to weird conferences for an extended time at best, and the setup of a cult compound at worst.

Consider basic things like "How do we get food, water, sewage, trash taken care of". No way these little societies aren't simply fudging when it comes to those problems.