Because of the amount of data. Being in public has never before meant that everything you did in public was stored in a format that will eventually be mined wh

Because of the amount of data. Being in public has never before meant that everything you did in public was stored in a format that will eventually be mined which private and public companies can get access to. If you don't see the problem with this, wait til the mining software can detect homosexuals and is deployed in a country where you can be killed for being such. "But I have nothing to hide." Maybe you do, maybe you don't. Even if you are good and the government is good right now, that still doesn't make you safe in the future. And it is quite clear there are already bad actors in the government. Perhaps you are the one about to expose another child abuse scandal... do you want the guy you are about to expose to have access to everything you've ever done in public, because I'm sure they can find a few minor crimes that they can then twist to silence you. Even if you are Jesus incarnate and have behaved perfectly while in public, they can still just edit it some misbehavior to silence you.