i mean it more in the sense of giving you a password you can always use to login. maybe the username should automatically be your BLID. the password would be stored in a text file upon generation in the blockland folder, and it would warn users that it made it and that they should keep it safe elsewhere
its not an extremely secure method since a server running eval could allow eval users to extract said password file, but usually hosts running eval would know that this security hole exists, and move the password out beforehand.