What do you want to achieve, have your name changed on the forums or have a different user login? In the latter case, someone else would need to speak up. In the former case, you already know how to do it.
I want to customize my profile page. I want my name to diseappear from the profile page where I publish my future games, because I want to make a custom logo on my itch.io page, I want my name to disappear from the page. Look at the picture I have on the first post. Where the red circle is, I want that to diseappear. And I want to put a custom logo on it's place.