I didn't even know we could change them.
@keekers , @twilliam1313 Fastest way to do get this done is to use menu button to the right of your post and scroll down to "report inappropriate content" (it's not just for reporting people) type in your request and hit the "notify moderator button".
Someone will help you as long as the user name isn't already taken. You can use the search function (select "users" from drop down menu next to search bar) to search for the name you want to use to see if someone already has it, or not.
