If someone has enough control of the app to utilize its export-to-plaintext button you were SOL anyway, there are plenty of use cases for “export a password protected encrypted blob of chat history so I don’t lose everything every time I switch devices”

> If someone has enough control of the app to utilize its export-to-plaintext button

Or find the lowest-paid, most-indebted and/or most-adulterous member of the TeleMessage team and bribe and blackmail them.

Signal already has exactly that? That isn't the same as a plain text export like the GP was saying though.