To the best of my knowledge looking around, there's no option here to change our usernames. I searched around and it looks like the latest I could find about it here was posted almost an entire decade ago.

I have personal reasons I don't want to post under this username anymore, and I would like to be able to continue using this account. Is there someone I can contact to get the name changed?

Sorry if I missed something before posting this, and thanks in advance.