So maybe someone took the Akumadoingu tag on Xbox Live and they stopped playing forever so you can’t get the name you so want. The time for that is over now thanks to a blog post announcement from Major Nelson that said that you would be able to get a gamer tag that was already taken but not used or if your name was baned with no reason as to why for no reason. In the post he said:
Starting today, we have begun the process of making previously used and unavailable (dead) Xbox LIVE Gamertags available. This process will take some time to complete, and no we can’t tell you when the Gamertag you want might be available. If you are interested, you should check back regularly as we are reviving Gamertags daily.Sign into Xbox LIVE and go to the My Xbox channel, then select Change Gamertag. From here you can either choose from the random name generator, or you can enter a specific Gamertag to see if it’s available.
You can jump for joy now.