let users change their name

[wheresalice]

If you change your username the status for the previous username is left behind. It should be deleted and replaced with a status for the current username

[wheresalice]

This sounds relatively straightforward. Whenever the user changes their status, check if their name has changed since the last submission and delete the submission with the previous name.

However, we can't check if the username is already taken by someone else. In which case, they would become that other person. Is that better or worse than leaving their previous status behind?