I have long since come to the realization that they track and log everything. I mean every single thing you do. The main limting factor is the inability to parse through this monstrous amount of information. But that will change with software innovations and as processing power increases.
That said, whether someone could run on this platform or not doesn't matter. The cat's out of the bag and there is no going back. The only question is how open the powers are with it to their citizens.
To be honest, looking way
way down the road I see our civilization as we know it fundamentally changed. People will cease to care about privacy, not only from their government(which most will dissolve as they lose control of information), but from stranger to stranger. Information of all types instantly shared with everyone. Could call it a hive mind, which is where human created technology is taking us and must be where we collectively want to be.
Anyways, that's me going off on a tangent
. I blame Wikileaks.