Stack Overflow isn’t a tutor site. It’s a wiki. Its usefulness would plummet if duplicate questions are allowed, since that would scatter all the answers.
Then it should allow to connect duplicates as sub questions to main question which they keep as original, Wikipedia allow additions to articles after all, i mean if you comment your question under main question, who gonna look at that?
Stack Overflow isn’t a tutor site. It’s a wiki. Its usefulness would plummet if duplicate questions are allowed, since that would scatter all the answers.
Then it should allow to connect duplicates as sub questions to main question which they keep as original, Wikipedia allow additions to articles after all, i mean if you comment your question under main question, who gonna look at that?