Today I flagged Avoid height flickering in a block when hiding content with \only as a possible duplicate of Avoiding jumping frames in beamer.
Some other users also marked it as a duplicate, but Charles Stewart wrote a comment explaining that he considers these duplicate question and answer better than the original ones. I agree with him but I didn't consider this aspect when flagged.
So, what it's supposed should I do to. Should all original questions be flagged as duplicates of new ones? Should do nothing? Should I edit original ones including a link to duplicates?
In Closing questions as duplicates when the duplicate's accepted answer isn't ideal there's a similar discussion but now also the question is better.