Please, can someone (lemmyist) with an account on GitHub do this … as I have no knowledge about it 🙏

Maybe the request for improvement (to be raised on GitHub) could be as such :

Lemmy account registration should be dropped if not validated after a certain amount of time. Old databases should be revised. To be applied only where an email is required for registration.
Edit : Better yet : the registration page should not drop until successful registration

Please be so kind to reply here after you raise it 👍