Yeah, if you want the icon to go away after you changed it the first time from your original username, then you probably want to change it a few times until you get whatever name you want. If you have the name you want now, change it when you can. Since your previous name is always saved for up to 35 days (regardless of how long you've had it) and you can change after 28, just change back to your previous name in those 7 days before anyone else can grab it. Then wait 35 days or so and the icon should go away then (because you technically haven't had the name longer than 35 days). ...I hope that made sense lol.