Single Comment

There was no security bug, and there is no chance that what Greg did would
have affected your game. A piece of code, which made the userid all
lowercase, was in the wrong place to do its job effectively, and the
result was that your userid needed to be entered entirely in lowercase to
be recognized. I moved the code to where it is effective, and now you may
enter your userid in any combination of upper and lowercase. So, if you
had entered your userid as 'centaure', you would have encountered no
problem, but you probably entered it as 'Centaure' instead.