First things first:
- Commentary is a tag for when the commentary is completely understandable in English, and there is some actual commentary
- has:commentary is when there is at least 1 character written in the commentary
Now, the scenarios where they are not the same:
- Hashtag-only commentaries. This should not have any commentary tags
- Commentaries that are not understandable in English. This is when the tag should be commentary_request instead.