The issue is simple. Buzz works because it is authentic. Is it possible to have people sign up to create buzz in the future for some product they may know nothing about? Creative Commons Licensees are complaining that a slinking BzzAgent seeks to improve its reputation by offering its services pro-bono to the Paladin that is the Creative Commons.
The idea fails to compel the community, but in this story at Wired, BzzAgent founder Dave Balter defends his position.