I think that terror of which you speak, is not shared by the general facebook users.
I know, the data privacy is a real problem today
In my opinion, the first step for such a project is to transfer this concern to users, since, launch a project to a normal user and say, "the data that you have in facebook, will now be storage in a startup, but will be anonymous "is not so easy and requires a great awareness campaign
Good luck
I completely agree with you, in that we need to build a lot of awareness for flare. But the public media are already doing it for us
![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
Plus, when they do switch, the data is not only anonymous and encrypted, but also becomes a blockchain asset that they own. This means that users will literally own their own data, and not just entrusting it to a startup
![Wink](https://bitcointalk.org/Smileys/default/wink.gif)