Mashable: Facebook has a problem that sounds good in theory, but not so much in practice: Too many customers.
There’s no question that the top advertisers want to be on Facebook and inventory isn’t a problem, either. But at the moment, Facebook lacks the infrastructure to stay on top of demand. That’s created a huge opportunity for about two dozen agencies that act as middlemen for Facebook’s ad business.
Facebook has to implement new rules for Facebook Live because people are literally the worst. Now, if you break the rules you'll receive a ban.