No need to worry. The answer you found is wrong/misleading/outdated.

As proved in [those revisions](https://meta.stackexchange.com/posts/289554/revisions), if other user is retagging the question and adds a tag you have gold tag badge for, you will be able to dupe hammer it. (the linked question was originally posted only with [tag:bug] tag for which I don't have gold badge, then someone changed it to [tag:support] where I do have).