If a question is a duplicate, it's going to be closed. What should be done with answers to it that just link to another answer by the same person? This seems redundant. I wanna ask you how you behave with this "dupe answer" in such cases, assuming the linked answer is a good one.
- Upvote the answer, because it's a link to a good answer
- Downvote the answer, because it's a duplicate just to earn rep (in your opinion)
- Leave a comment, telling the answerer that you think the answer should be posted as a comment to the duplicating question