I do agree with <<If you do intend on migrating to ECC then DO NOT use any of the NIST Recommended Curves! Those have been compromised from the beginning!>>
They are mathematically bugged/screwed/"backdoored" by design!
This is an awesome idea we were already thinking about. It will be optional.
I do agree,
I remember that in the '90s some email account required/allowed a different user for login than your email address.
This feature got lost because of "practicality" and "easy to use" "easy to remember" issues.
We should go back to the origins!
I do agree: i created accounts for friends & family, but I got problems, as I use TOR to access Internet.