I need to be able to guarantee the privacy of my data when appropriate (assuming I trust my friends, of course). With Facebook I can't, because (1) they can re

I need to be able to guarantee the privacy of my data when appropriate (assuming I trust my friends, of course). With Facebook I can't, because (1) they can read everything, and (2) I don't trust them not to. To fix that problem, Facebook needs to become a-centred. But that would be throwing away their busyness model along with their data-centres.