Re: People will forget...
I can't see there being much "flocking back"
Most users don't give a shit. They haven't left in the first place, and it won't even have entered their heads to consider it.
The people who care about such things (currently), are a tiny majority.
That'll change the first time this data is used to take someone's benefits, or as evidence that they were buying drugs etc (they have in most of our cases, our text messages, all of them).