I saw this question this morning and gave an answer. In the time between me typing my answer and submitting it, there had been a comment and another answer posted.
Both said broadly the same as my own answer. The other answerer has made some comment on my answer. I think (s)he is making the point that our answers are the same.
Their answer is more detailed than mine and it was posted first. The second comment "it's up to you", as it's from a high rep user, makes me think that I should do something - but what?
What is the correct thing to do in this situation?