So I recently came across an answer that was already previously answered (quite a few months back), and the new answer did not seem to add anything that was not already covered. After a brief discussion in chat, this verdict was as such:
unless clearly plagiarized, I don't think we do anything with duplicate answers
There is a little bit of disambiguation though, so what is the common/actual practice for this, in terms of flagging, voting, deleting, etc?
Here is the answer in question.