The concept is very useful and will allow you to take advantage of other people's experiences and techniques for sustainable living, and deserves everyone's support. Everyone has something to contribute on a site like this, and definitely everyone will find something they can learn from it, too.
I'm thinking that if one of the experiments was to be a home gardening information and trading post, we could do away with a lot of supermarket product and the pollution and carbon costs involved in their shipping food all over the world. There! An idea already!