Yes social network use a lot the datas of users, and some users dont want to share their datas with big compagnies most of time. Thats why I think decentralization is very important for the future of social network.
It is! And you and I see that, but I don't think most Facebook users do. Lots of them are raised in times where it is "normal" to share ALL you information.
I dont think it ever was normal for most of the people. I, for myself, can say that i simply dont care. I have nothing to hide and if i can get a better service for myself out of that, thats cool