MS_ is correct when he mentioned genre specific. I know, I know, genres are pigeonholes but as far as groups are concerned, They are very necessary. Now the idea of the group itself is novel, It will end up just like every other group filled with 1,000,000 noizes from 1,000,000 producers unless some guidelines are set. One of the most important guidelines would be to limit one share per user per day/week. Just be smart about it and you can make it work for you.