Recently I had a basic question that so many others before me have also had, so I searched SO and found the question.
There was an answer that indicated their previous great answer to a "similar" question.
This older similar question with 10x more views and hundreds of more votes was exactly what I was looking for, and it seemed to me beyond similar, to the point of duplicate. The only reason I found it was by wading through the answers and comments on the first page, which could have been avoided if only it had been marked as duplicate with a bold link at the top pointing me to the well established question with a great many more robust answers.
My first instinct was to flag as duplicate. But I hesitated because the question is over 4 years old with several upvotes, so I thought surely there's something distinct I'm overlooking here. Likewise, I assumed someone else surely had the same inkling and must have flagged it by now, so by that assumption I concluded the flag must have been declined. But why?
My question is: Is there a way to review a question's history for declined flags?
They should be anonymized so it's not visible who raised a flag, but at least a count of which type of flag and any reviewer comment why it was declined. This would be beneficial so that if I have a doubt about raising a flag, then I can at least vet the flag through it's history to see if there's a pertinent reviewer's comment on declination. This would prevent double jeopardy and unnecessary wasted time on behalf of flag reviewers.