Mark is a good man and a great developer who fought on the front lines and I’ve known for a long time.
I’m not comfortable blindly trusting a random person I meet at a conference with our users’ privacy. You really don’t know who is a current spook, or spy, or worse.
Lastly, to put this to bed in a way that only developers and those that understand could appreciate (like you), we severely limit the people who have infrastructure access as we practice defense in depth, and Mark isn’t one of them.