If we could come up with a way to stop changing the email address. You see, multi accounters just make their email something like jfgldfg@djfdks
.com and then make a new account with their real email.
Maybe, just maybe, there's a way to stop this by altering the email system...?
Maybe if when you change your email address, an email is sent to the new email address to confirm email address change. Then, if it is not confirmed, the email address stays the same - therefore they cannot make another account (or does it let you make 2 accounts with the same email address --> if so, this needs changed.) This would at least reduce multi accounters significantly.