The tag wiki is an important part of the information architecture of a SE site. It provides a dimension of navigation, and makes information about a specific topic findable by searching for the tag.
I've noticed several instances if unilateral and arbitrary retagging of this site, all of them carried out by the same individual, who is also a diamond moderator. This pattern of misbehavior was visible from the start. I even mentioned it in my pre-election objections to this person becoming a mod.
As an example of this type of mis-behavior, take for example edit 2 of this one, where the tag "licensing" is removed and a new tag, "interactive-environments", is created.
The "licensing" tag has the following summary:
Licensing refers to applying a license to an area of software. Only use this tag if your question concerns the application of a license to an area of interest.
As it happens, the question is specifically about the application of the GNU GPL to a derivative work in an interpreted language. I cannot see that applying the "licensing" tag was wrong enough to warrant its removal.
Even stranger is the creation of the tag "interactive-environments" for this particular question. As far as I am able to tell the question has nothing do do with interactive environments. For instance. one the main applications for one of the interpreted languages mentioned, Python, is implementation of internet crawlers, FTP, IMAP, and very many other Internet protocols. These are applications that are typically used in non-interactive environments.
Assuming this is not malicious, the only explanation for this behavior must be that the diamond moderator in questions is lacking in knowledge about computer science fundamentals that matches his/her ignorance about free software and open source licensing. This need not be a problem, but when such ignorance is paired with a lack of self-restraint, it becomes a problem.
I know this is an unusual feature request, but: What I suggest is that the right to retag and to create tags is taken away from this particular diamond moderator at least for some time, in the hope of getting this person to show more restraint in creating and changing tags.