> The only downside is that the Signal servers may store automatically disappearing messages until all devices have received it, so you can't rely on messages b

> The only downside is that the Signal servers may store automatically disappearing messages until all devices have received it, so you can't rely on messages being removed in due time. I don’t understand your problem statement. Signal is completely an end-to-end encrypted chat platform. Those messages stored on the servers are encrypted and Signal (the platform or employees) doesn’t have the keys to decrypt the messages. So what’s the issue if the messages remain on the servers until they’re delivered to the recipients’ devices? Even the non-disappearing messages don’t stay on the Signal servers forever (unlike say, Telegram).