I participated in their forums for a few months several years ago, but I quit bothering because they are not particularly incremental. As one of their references, Jon Fisher's The Last Frontiers on Earth, points out, one of the things pioneers have always had to deal with is leaving behind some of the comforts of home. They seem to think they are going to start out with all the comforts of a city, or at least an "edge city" suburb; it's not going to happen, they'll just keep on daydreaming.