Yesterday, I thought about whether a data explorer query that finds topics tagged fixed but where the user did not receive the bug reporter badge, combined with an automation that sends that report to a group, would help catch these cases and ensure the users get the badge they deserve.
However this will only catch those where the tag was added 
But I don’t think it makes sense to use all the closed bug topics as a basis, because that would also include the duplicate and non-reproducible ones.
That’s why I am not sure if it will really help because someone would still have to check that the topics get closed and tagged.
I have chosen a more general title; maybe others have some ideas where reports could help. I think Jammy had some that replaced the automatic bumping of topics.