Signal4desktop also lacks any backup-and-restore capability. This is a pain when one has an android-handset, which does do backups, but cannot restore that backup onto their new laptop with their new signal4desktop install Similarly, if Richard has android at the moment, but decides to buy an iphone for a special contract with the carrier next time around, he loses all his chat-history because iphone cannot restore his backup-blob.

Choosing the backup location, means not just the ability to decide what folder the encrypted-backup-blob is saved unto, on the device being backed up, but the ability to have the encrypted-backup-blob get sync’d into the Dropbox / MegaUpload / iCloud / gDrive / msfOneDrive / Amazon t2.micro / corporate LAN fileserver via wifi / NextCloud / web DAV / … there are a bunch of places that the encrypted-backup-blob could be uploaded, which would be fairly secure as long as Eve does NOT have the 30-digit backup-decrypt-passphrase (which should be written down and kept in a safe place instead of uploaded to any cloud). Also, we need Eve to not have a quantum computer with a few thousand qubits, but that is a reasonable assumption to make

johanw666: johanw666: I doubt that will be of much use: for correcting small typos no one is interested in the history, and for the cases where you want to edit something embarrassing / insulting the editor just wants the previous information gone.

We have a thread about that, where I’ve answered that question already Edit or delete messages after they're sent comment#86. But my stance is that trying to remote-perma-delete something embarrasing, on a per-message-chat-bubble basis, is not something signal CAN support… it is just technologically not possible, and signalapp therefore should not imply that it can be reliably done.

As for the valid uses, there are plenty: correcting typos saves face if they are minor, and prevents/mitigates/lessens the bad realworld outcomes if they are major. Don’t leave wrong info laying around, and don’t leave dangerously wrong info (or expensively wrong info) if you are running the 99-member alert-channel groupchat, is a good practice. But impossible to implement that strategy, in practice, without some kind of request-edit feature… which the competition does provide, signalapp is not the only game in town.