Random comment on Reddit:
"The account recovery for Byond is ridiculous. It says my email has already been used to create an account, so i figured i'll recover whatever account someone made when they used my email address.
It wants to know the account name in order for it to resend/reset the password. How the [heck] would i know?"
The password recovery page should also have an email field for situations where you can't remember what key you registered.