I think the preferred option is for you to email the Editor but since said humanoid is never around... it's probably easier just to do as Chuck suggests.. (don't forget that you will need to have another new email address) as well as a new username ready.....
To let us know what your new name is (once created and registered etc with AnswerBank), just post a Question asking something like, does anyone recognise me... I used to be BockingBob.... or some other daft nonsense. Don't you dare come back as RockingRob though !