Hard to avoid FB slurpage
I'm not on FB (no surprise there)
But difficult to stop others, who are on there, posting information about you (including images), sharing their contacts and so publishing your phone number.
Fortunately SO is also not on FB, so has number of my second SIM, that I don't make available to general data spilling friends.
Does not stop my "main" number getting owned by FB, but does mean I have a "private" number.
Biggest irony is that (ex directory) landline number is private as everyone we know only has mobile number, nobody asks for (or is given) landline (bar "need to know" people such as bank, solicitor)
Biting the hand that feeds IT
