You cannot say flat-out say that E2E alone must be maintained, you must make it harder for others to reach you, thru something done in-person/screen-only QR-code, Bluetooth'd contact vCard, ..., something that prevents drive-by spammers/perps/malicious actors from randomly attaching to an account.
The key thing is to make distribution of account name harder:
1. Send 256-char hash of your account
2. They tag your hash with a name of their own choice
Disassociative of name to account gets maintained when used with a Signal protocol, which is what Signal app can do.
Again, weak sauce on claiming E2E is alone essential for child's privacy.
The key thing is to make distribution of account name harder:
1. Send 256-char hash of your account 2. They tag your hash with a name of their own choice
Disassociative of name to account gets maintained when used with a Signal protocol, which is what Signal app can do.
Again, weak sauce on claiming E2E is alone essential for child's privacy.