[0.82] Personal Identification Codes

Also, i think this is a deterrent for people who share accounts. It basically makes it so that if you do share an account, the person you share it with will have the ability to delete the characters, which isnt exactly doable before without the birthday code.

Usually if you share accounts it means there's a mutual agreement to not do any serious things like delete characters unless all people sharing the account are aware of it. Otherwise, you obviously met the wrong person to trust your account to if he/she deletes characters without your consent.