Thread on here with a few asking about changing username and I have had a few requests too. I have installed ability to change your username. This will be available to members who have been registered more than a year and can be done just once. Click your name at top of forum and there should now be a change username link in the drop down menu. Your username history will be shown in your profile
Thanks @andytyke but when are we going to get the ability to change other people's usernames? That's what this site really needs.