I went to a mobile gaming summit once, and amusingly, companies were able to point out Facebook's moves away from this open season approach in their download nu

I went to a mobile gaming summit once, and amusingly, companies were able to point out Facebook's moves away from this open season approach in their download number graphs. Facebook limits you to one picture per post? Big drop. Facebook hides game posts from people not playing the game? Big drop. Etc.. So I imagine if Facebook was forced to eventually start limiting game posts, Twitter will eventually have to follow, as you say.