Secondly I think a thread is better because it's no so in-your-face as right there on your control panel
? the CP is "in your face". Thats news to me.
As for kiros being busy i agree, he and the other admins should have to mess with constantly changing peoples usernames. That frees up some time. Then i made it as a suggestion, it doesn't have to be done right now and in the long term will probibly save them time and effort.