Reporting a user to WhatsApp forwards a copy of recent messages from that chat
E2E encryption in closed source automatically updated programs doesn't provide any real assurance: whoever makes the program can subvert your privacy at any time.<p>Do you trust the author of the program? Then E2E doesn't add much. Do you not trust the author of the program? E2E doesn't help. Either way, what's the point? Sure, I guess E2E provides some kind of additional privacy at the margin or something, but you can't rely on it for anything.