As a user of Facebook, this quote explains a lot. I run a Facebook page with 90k+ likes, and have grown to expect it to simply not load completely without refreshing it multiple times. I've long suspected we were the victim of some type of 'trade-off.' It appears my suspicion were correct.
We also spend five to seven thousand dollars a month on advertising. I wonder how much more effective our campaigns would be if our page loaded 100% every time.