This could be an option on other forums, with more gamification features. Here on TCS, it's actually the opposite that's true. We prefer to avoid username changes because they can confuse others in the community. Therefore, we only allow them if there's a good reason and the member in question has a handful of few posts on their name.You can't change your username yet, but after certain numbers of posts and days it is possible.
You can PM any of our moderators with a name change request, or use the contact form (under contact us, at the bottom of any page). When you do, please let us know why you need the name change and what username you prefer. If you can, check the forums first to see if that new username has been taken. Otherwise, you can suggest 2-3 unique names and if we can do a name change, we'll use the first available one.I feel like Catus isn't a very creative name, sorry though.