Actually, i was more suggesting that we get more often together with our neighboors, friends and family to do things together to build and maintain real physical contact and cooperation where we are now, rather than suggesting that some of us nexians get together to start a community.
But the idea does have a nice appeal, living together with others (especially cool nexians!) who share the same ideals, probably because of this sense of building something together from the start with a collective commitment. Probably more appealing than the idea of knocking on your unknown neighboors' doors to organize skill sharing sessions, with the risk of discovering that half of them are racist intolerant conservatives.
Having myself and a few others started almost exactly the community you describe, Enoon, and having lived off the land and built my own house, i have a pretty good idea of some very important key aspects necessary to the success of such an endeavour, and i know some questions that must be seriously be reflected upon, and could spare some heartache later on. Read on if these interest you.
The first cornerstone is of course the humans you will be working together with. It's one thing to get along with people just talking, but physical work reveals some other aspects of people, for good or bad. And if you can't get along at work and truly share an atmosphere of genuine and fair cooperation... Then again, if you can, things go up fun and fast
You might also be living together, sharing common bath and kitchen and whatnot. Personnally, i won't ever risk that again, unless it's for a short time. Private space and facilities are necessary imo, simply because people have different concepts of cleanliness.
The second cornerstone is money. Setting things up from scratch, especially buildings, costs a fair bit, maintaining also, and there's always something that needs to be bought. Which leads to the essential question of what job will you find to finance all this until cash comes in by other means? When you get older and can't work, what will you live from? Financially, it could help to do be in warmer climates, no need for heating or big insulated buidings, less clothes, all year round domestic food production... That's probably why there are lots of communities in Hawaii. But land is not cheap there, land is only cheap in poor countries...
The location. The heart of it all. The following questions are already important if you stay in the same country, so if you change country, especially for a poorer one, they become a unknown mountain of adventure. Are you really ready to live far from old friends and family? How far? Blood is the strongest bond, and as your parents get older, you might want to be close to take care of them? Will there be any cultural life nearby? Other young people to have fun with? Eco tourism opportunities? If you have children, will they have little friends to play with? Education nearby? Doctor? Decent hospital? Stores? Job opportunities? What are the local people like? Will you ever really feel at home there? Drinking water? Building permits?
Gee, guess i'll stop the avalanche, but i know from experience that none of those questions should be overlooked when starting a community. And of course, there's nothing better than to visit some already established ones, and speak with the more experienced there to get an idea of community reality. Many accept volunteers and wwoofers. And new members...
it's about making life a neverending experience of wonderfulness!