[stonepresto]

What's to stop them from having hooks in their app that can bundle up all the decrypted messages, re-encrypt, and phone home? Certainly it wouldn't be default behavior, but its possible and would allow them to answer warrants.

[beej71]

It's a good point. But someone would eventually see it in the dev tools and Meta's credibility would be shot forever.

It's an open question if that impacts their bottom line at all.

[stonepresto]

Agreed. I think their bottom line probably is built off of how it would affect their user base. My hunch is given the immensity of the user base, it wouldn't cause enough of a significant exodus for Meta to care either way. But that's speculation, not sure if that can be backed up with evidence from past events.