Hello Players, I'm writing this to ensure that everyone is up to speed with the problems associated with changing your in-game names.
To further elaborate, currently due to engine limitations we strongly advise NOT to change your name. Why? This may result in your statistics being lost; as they're assigned to that persona only.
If however you stream, we understand the possible need to change your name due to trolls and what not.
Sometime ago I wrote a guide detailing how to both backup and change your in-game name, it is admittedly long winded however, if you really need to change your name I suggest following this: Guide.
Please, please ensure you heed our warning, as we will NOT be offering profile restores this weekend due to our busy release schedule.