Nice to know it's possible. But you're right. I remember changing it to a temp mail that doesn't exist anymore. Although, if you have any history the IPs/locations and emails, they may be linked to something I have access to. And on this comment you can see my username was previously "SmallWeb" which I was listed as a director of, back in the day.
But yes, probably a moot point. I am very picky with accounts, hate having extras. 😆