[S4M]

> U.S. Facebook engagement was actually dropping in 2011 and the Zynga games were the reason why. People hated those games.

That doesn't make any sense. Facebook goal is to have people staying connected to Facebook as much time as possible. Be it to check their friends status, the fan page of their idols or to play whatever game is trending. If Zynga's games are popular, the better for them since they monetize that popularity, and the better for Facebook since people spend more time on their platform, and they can water their virtual crops or whatever in between checking the cat pictures some friend posted and reading about the new thing some other friend's baby did. If Zynga's games lose their popularity, someone else will overtake them (it was King with Candy Crush) and Facebook will not be impacted.