A weird thing about running a tech company is that if you are very successful, at some point you will also be operating a vast quasi-legal system. Up to a certain point, one of your users complaining that they got locked out of their account is just a customer service problem. But after some threshold — after you’ve reached a billion people, certainly, but also well before then — the same complaint can look strangely like a human rights issue. Do you have the right to speak? Do you have the right to conduct business? And if you lose that right, to whom do you appeal?