This question already has an answer here:
I asked a question yesterday on SO, as I was not able to get an answer using Google, and some time later a member posted a thread reference which had an answer to my question.
That thread contains question similar to mine with better answers, which brings me to my question that, if I cannot find my answer Googling or using the search facility of SO and post a question to ask it, only to realise later that it has already been asked and had a better-quality answer, what should I do with my question (shall I delete it or add the reference by myself to that question for future visitors)?
A mean sidenote: That question gave me 3 upvotes, so I was little hesitant to delete it too! :)