If unschooling is living in the world, then creating a sub-world defeats the purpose. I don't object to conferences, but I think people should go to a conference or two a year, maybe visit some unschooling friends, and also do other things, and have other friends. Mostly they should live in the town or city where they live, and not in an overlaid fantasy world.
SandraDodd.com/unschoolworld
photo by Sandra Dodd