Haven't heard of any, but I'd like to try the concept. I'd like to go further, though. I'd like to try a community where no one believed any woo. A community of scientific thinkers.
I've never heard of such a community. Actually, I would be against the idea of creating a town for non-believers alone. While I do not believe the malarky, I'd prefer to live where everyone can, at the personal level, believe as they choose. I'm not sure how you would legislate community wide mind control and I know I would not like to be on the receiving end of the same. Here on planet earth, this is going to be a long process of letting go of myths and make believe. I'm all in favor of actively advocating reality but I don't think it helps the cause to force it upon others. Freedom of association is a beautiful thing, especially if you come from a place where it was verboten. It's not something we tolerate, it's something we should be proud of.
I think he just means non-religious folk using their freedom of association to seek each other out and, well, associate! Nothing quite so sinister as saying no one in the group can change their minds. But really, have you ever known anyone who did?
Living in a strongly religious society, being hated and isolated just because of atheism, I storngly desire sometimes for a place where ediots were looked down and become isolated.
If they don't exist, we can make them happen. It's simple really, and can actually be done for just about anything, not just Atheism. All you have to do is get involved and get vocal. Make your area known for Atheism. As such, it will attract Atheists who are looking for a place to belong. I have actually considered moving to Austin Texas simply because of how strong and vocal the Atheist Community of Austin is. It's the basic "if you build it, they will come" philosophy of attraction. If you make your community more inviting to Atheists, then more Atheists will want to move there, or at least your Atheist Retention Ratio would increase.
That might be an interesting way to form something. Though, you might want to factor in evangelist obstructionists.