Reading you, it looks like many people where exposing too many ideas in a very short time, but that the group had no direction. to make it simple, I will base myself on what you said.

Initially the idea was to have an actual tribe, speaking and living like Na'vi.
This is the basic idea. At least, living like the Na'vi can also be understood like living in a rather basic way, very close to nature, with clear notions of respect towards people and nature. It is also in the plans to learn and use the Na'vi language, as well as the local territory's language.
We would homeschool our kids, have one waterproof-weatherproof building with a phone line, emergency advanced med supplies... etc.
This depends on the legislation and if we really have the possibility to do this for instance. There is a topic about this in this section somewhere. For the rest, everything would be done to ensure both legal standing, safety, and communication with the outside even if an isolated area is chosen.
Once more people started pouring in, they started saying how that was a dumb idea
This entire Real-Na'vi Life Tribe is probably a dumb thing, certainly a crazy and ambitious project. Honestly, I don't mind much, this is kinda of a unique experience and I am not sacrificing my studies. Same for many people here.
that it should be more like a summer camp, or a rotating camp
There has been tons of discussions about the various availabilities and the wants of various people. There are two categories :
- Those who see no issue leaving things behind, caring for the family or not (still have the possibility to communicate), and would become permanent members.
- Those who are very likely to have some kind of occupation and that could not stay in a permanent way, but would still like to attempt the experience.
So the idea is to get this working with permanent members and non-permanent people. The idea is also allowing a wide variety of people of exchanging lifestyles and still being able to taste purely free and wild life in nature. I want to make this flexible and feasible for everyone.
There are still several people stalking the forums and reading topics in this section though, there might be some interest.

Now, I just have a question...
I wanted to do it because of my daughter.


