You have provided two answers that have ≥10 [upvotes][1], which matches the badge qualification.

![answers][2]
![badges][3]


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As for Good Answer, the answer had probably been migrated/deleted. Badges, once awarded, generally [are not revoked][4].


  [1]: https://superuser.com/users/1086/john-rudy#qpage_1-apage_1-qsort_votes-asort_votes
  [2]: https://i.sstatic.net/NeQja.png "answers"
  [3]: https://i.sstatic.net/zX1sl.png "badges"
  [4]: https://meta.stackexchange.com/questions/17853/how-do-badges-work