I think in next 5 years, Facebook will provide an option to add Siri or someone similar to Siri as friend. This friend will be a BOTFriend that has already learnt so much from the social interactions in facebook that it can figure out when to say Congrats and when to say happy anniversary and when to recognize that awesome profile picture.
Since this BOTFriend will be backed by a large set of servers like Google search, it will be respond to more than 1 person at a time. It would be able to learn your choices, tastes, likes and dislikes and respond appropriately.
Not only that, it will be able to recognize, which of your profile pictures are Photoshopped, from where did you actually check in, how long did you spent at a place. In a way it will be able to know more about you than what you think.
This BOTFriend will be able to pep you up before an important event or give you right directions before a trip or even suggest you things during a travel. I know this all looks futuristic, but with billions of interactions on Facebook it is possible sooner than you think.
Till then let the donation of Social data on Facebook continue..:-)