Reference question: CSS selector code last element
I don't know how long it will last (update: he edited his older answer) but this user "Nathan Lee" posts two answers.
First he posts a generic solution that aids the OP but isn't adapted to the specific code in the question. A couple of minutes later he posts another answer that looks very similar, but is directly adapted for the code of the question.
I wanted to downvote his older answer which I previously upvoted, but that vote is locked. I left a comment on his newer answer that he should remove his older, because what he is doing is bad. What should I do more? Which of the two answers should I flag, if that is necessary?