Putting it on personal mobile devices allows it 1) to be more easily exfiltrared to their foreign affiliates, and 2) allows them to get around FOIA. I'm sure most of their actions are being carried out in a similar manner.
Even if we ever do wrest power from them, we will have to go along without ever knowing everything they have broken.
I think he had to enter into agreements about content in order to get financing from the Saudis and Russians.