Did you read my comment? I explicitly said I am not begrudging them the opportunity to make money however they want. If you want to quibble over the denotation of "conflict of interests" fine, let me put it this way:

It's not sustainable for Facebook to degrade the usefulness of their service in this way for a short-term cash gain. 15-20% throughput to fans is so low as to confound expectations, and I'm saying this will bite them ass.