It is constructive. There are a bunch of people who are interested in self improvement, trying things, failing, and then picking themselves up and trying again.
That's rare. You don't find that in many communities. Most of the time it is just negativity and "you can't," "you shouldn't," "here are all the flaws," etc.
Hopefully this grouping of people and ideas will help all of us in some way, they do say that it is the people you surround yourself with...