"(Facebook's goal is for all seven billion of us to have seven billion friends each)"

Then they have failed with this particular individual. Not that one non-convert will make any difference to their alleged hegemony.

I couldn't see the point of it. I already exchange photos with my brothers without F/book's help. I had no intention of posting photos of mine, for 7 billion people to see, potentially.

Going back to someone else's post about getting back in touch with people from college days 40 years ago; I've already been round that trail with Friends Reunited, about 10 years ago. We got in touch, met up in real life, and then that was more or less it. Life moves on. It's not necessarily fascinating to hear or see what now-60 yr old college mates are doing with their grandchildren on holiday.