Thanks for your feedback John.
Yes indeed, how to handle spam accounts in a totally open Moodle site is one of the technical challenges we have encountered. And as 99% of these are from gmail accounts we've blocked that as an email address for registering - figuring most people will have a school or alternative email address they can register with, and once the account is validate they can change their email address to .gmail on their Profile
I would never see FreeMoodle.org as a repository of self-paced course, because everything I see, read, and experience tells me that a course supported by a teacher (although not necessarily led by a teacher) is the most effective experience, I guess I'm agreeing with Matt's perspective very strongly.
Sure, if you would like to become involved in FreeMoodle later in the year that would be great! On the Admin side would be excellent, as that's where a lot of our volunteer time goes.
As to whether these models are sustainable, well FreeMoodle has been going 5 years now, but it is worth noting it is financially supported by HRDNZ, a commercial company, a Moodle Partner. From a commercial perspective, we hope that people using the site become aware of our wider services, and we can at least cover costs by teachers taking online courses with us for example. I am 100% in favour of this approach, and 100% against going down the 'easy route' that Google, Facebook, Twitter, etc. take - which is focussing on advertising revenue via data mining.
I still think in the most challenging thing is building effective networks of teachers, or more rightly I might just term them contributors, to such an environment, where the focus is on collaboration (not competition), and where the content can indeed be open and free to all (without creating issues around IP, and employment contracts etc.)