Increasingly we hear complaints about closing a question as a dupe to another question. Sometimes much effort is put in editing a question to make it look different but this not always results in an improvement.
If the edit did lead to another, different question with different answers or makes the issue clearer then everything is fine as long as exisiting answers still fit. If not we perhaps may also consider asking another question with a more detailed issue.
There are quite clear-cut guidelines from the Stack Exchange policy on what to do with dupe or near-dupe questions so there should be little debate in what to do whenever we come across candidates for dupe-closing.
Dupe-closed questions will tremendously help users who come later to find all relevant information in one place and they give the dupe question & answer thread a huge chance for improvement when additional answers may be added.
The more we cross-link our posts the easier the information we gather here can be found. And isn't this exactly what this is all about? Isn't it wonderful to be able to help so many people who come here later with the same issue?
It is the essence of all Stack Exchange success to have such a huge collection of questions and answers but they need to be found.
So I am really worried about why people feel so bad about their own or other's dupe-closure. What can be done to make it clear that having a question closed as a dupe is not so bad but is actually a good thing?