What's a good enough reason to change your user name ?

I would really like to change my username to reflect me more. I created this username over a year ago as a guest and then did not end up participating like I am now that I am serious about becoming a jedi. Therefore I would like to at least lengthen the first part of my name so that it either includes my real first name or another name that people can call me as rather then just a letter and my last name. Would this be considered a good enough reason to change my username ?

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