Wolph, I'm guessing you're unaware of how the most common form of advertising works. I'm 99% sure that the only advertising on BuzzerBeater is via Google Adsense, and this would mean that BB do not negotiate with advert providers, nor have any say over what advertising goes up.
It's all Google.
It's inefficient - both capital-wise and as far as the adverts run - and lazy. But it does mean that the BBs don't have to do any work whatsoever to get a small amount of money trickling in from it. It also means that whatever advertising metric Google uses to determine what-ads-run-where make the decisions about the advertising. Quite simply: it's outta their hands.
http://with-malice.com/ - The half-crazed ramblings of a Lakers fanatic in Japan