User thebadthinker (W: 2 days, S: less than a day, ID: 9461766) has been modifying tags of several articles in quick succession, removing staff tags (like _licensebox and contest tags), and adding iris-thompson. Additionally, their first (self-reverted) change was a typo within the tag box.
Uncle Nicolini emergency revoked, an action aismallard and I also noted support for.
I'm assuming this was accident by a well-intentioned new user rather than intentional vandalism, so I don't see a need for a ban unless this behavior continues after they rejoin the site.