What can one do? They aren't a government entity -- you can't vote management out or change policies. They aren't regulated -- you have no complaint procedures or escalation mechanism. The best you can do is yell at them. They will gladly laugh at you through their young-and-rich-and-by-the-way-fu billionaire eyes.

If they decide to make public every thing you've ever written in rolling 10 year intervals there is nothing you can do to stop them.

The public has no idea how much can go wrong giving one entity essentially a copy of their entire private lives.