The Facebook help forum says, after 90 days, almost the maximum of the personal data would be deleted from the account. But, as you have said, some of the data would still be left. If anyone goes for permanent deletion of the account, Facebook takes 14 days to start their permanent deletion activity. Does the data deletion process start from the moment one would delete the account, or does it start after 14 days, or 90 days? Also, does Facebook gives any messages or emails before permanent deletion of the account?