In this question, I initially messed up and put in an incorrect result. Blindingly fast, the answer was downvoted. I raced to correct the result, but by then there was already a correct result. So I deleted my answer.
This might seem like a triviality, and my hope is that it eventually is. Unfortunately, I have seen cases where the poster of the downvoted answer makes a correction to match a result that is upvoted. In some cases, that poster bitterly complains about the downvotes now that the result is corrected!
I am asking potential answerers to please recognize when you are effectively posting a "me too" answer, and delete it. In some cases, I understand that there may be an original methodology and perhaps the answer is worth keeping despite the downvotes - that is for the community to work out. But please, in simple cases like the one to which I linked here, please delete when you mess up and there is a correct result in its place.