In case you missed it, you can add a Shuffle iT username to your profile now:
http://forum.dominionstrategy.com/index.php?action=profile;area=forumprofileIt will show up under your name on the left when you make a post.
You can still add a Goko or Isotropic username too, if you are suffering from crippling nostalgia and have been given some very poor advice on how to treat it. But it will only display on your profile, not whenever you make a post.