Thanks for your answer, it's always nice to find reactive communities members.
I'm aware that you are a non-profit organization and totally subscribe to it. One of the avowed goals of Lynk5 is to make communities effort like MusicBrainz more visible and allow a two-ways communication like hinted by the videos. At the moment the Recommender Engine is only at an Alfa stage and started with The Games Database open community that you can acquaint here : http://thegamesdb.net.
Albeit being young, they share several similarities with MusicBrainz. I earlier already worked with TheMovieDatabase (TMDB) for the creation of a Recommender Engine prototype (actually two, one focused on collaborative filtering and another hybrid version bringing semantics into play) and am interested to enlarge the scope to others communities alike. I have also browsed your conditions and find them totally reasonable and may come back to you eventually once the thousands of things that need my attention will be solved.
At Lynk5 we like open communities like MusicBrainz and want to contribute in our way by providing relevant, fun, agile and free recommendations that people may like.
Thx again for your answer.