I think this is something that is much easier to track with a data explorer query that returns all topics closed in a specific time frame but where the user didn’t receive a badge (or all topics that are fixed, but no badge was granted; that would exclude issues that were closed because no one could repro, but fails if the tag isn’t added). Then, an automation script could report that to a topic or group inbox.
Checking that manually is not that easy. You cannot just check the reactions on the post; you need to check when the likes happened and if the users were in the @team group when they liked it. Or, you need to check the authors’ badges.
And who looks at the first post just because there is a new reply that says the bug was fixed, apart from the team member who adds the fixed tag?