The inspector tag mainly seems to exist to refer to the Unity inspector. There are fourteen questions with the tag as of this writing.
As a tag, "inspector" alone is far too broad (not only Unity has a property inspector UI, for example, and it's generally unreasonable for one to be considered an "expert in inspectors").
So the question is, is it worth scoping this tag to Unity by renaming it
unity-inspector? We have a similar tag for unity-editor. On the other hand, I don't really see that unity-editor adds any significant value that isn't covered by the unity tag already. Certainly a quick scan through unity-editor seems to indicate the tag is misapplied very often.
What should we do here?