That would be fine too. I wouldn't care so much if the account was recoverable or not, but user access to close the account would still be nice. And in any case, I did suggest the restoration be an administrative option. That means the member doesn't have to have their data restored if an admin chooses otherwise.
I think it would be far better if a user could opt to remove their account, but have all posts retained and marked with a guest prefix. Better yet would be if the account was only soft deleted so an admin could restore the account a few days later when the user changes their mind.