An hour ago I bought a Nickname change and my old nickname is displayed, could I remove it somehow?
Can I remove my previous usernames/delete username history?from help/wiki/Help_Centre
Under certain circumstances.
Your profile will show all your previous purchased namechanges, but we only selectively remove the ones that may be an issue for you. If one of your previous usernames breaches your privacy (for example, if it contains your legal name) or can lead to your privacy being breached (via other websites), contact accounts@ppy.sh to request it removed.