Wikia lets users change their username only once. And you have to submit a request to the Support Staff. It's hard for me to think of a username that I really like. Mine is just two song titles put together. Twitter lets people change their username, but I think it only changes it on anything you post from that point on. And like Raven14 wrote, it could get confusing for others. If we were allowed to change it once, then maybe our profiles could list our previous username to avoid any confusion and all of our submissions and points would not be lost. Then any previous posts would not have to be changed. I'm not saying this to complain. And it could end up being a lot of extra work for those who manage this site. :)