The improve tag (33 questions) has a clear excerpt explaining its intended usage:
For questions about the Improve Edit button that lets you perform further editing to a pending suggested edit. For the 'Improve this question/answer' link you see when you're not logged in to suggest an edit, please use [suggested-edits].
It's used properly on most of its questions. But on a significant minority, it's used as a meta tag, talking about the general concept of improvement: Should I improve questions that are not mine by adding information? or Helping users figure out where to post their question, for example. The tag's vague name seems to make it a magnet for this kind of bad usage.
Beyond simply editing improve out of the questions where it's used in a way inconsistent with its excerpt, should it be renamed to discourage bad usage? Or is there another step which may be taken to similarly discourage incorrect usage?
Personally, I would prefer renaming it to improve-edit by Magical Moderator PowersTM after all the meta-tag uses are removed.