What should I do when I find duplicate or similar questions on the different sections (like emacs.stackexchange.com and stackoverflow.com)?



Do nothing, in terms of closing etc.

Instead, if the duplicate questions are from the same person then add a comment to each of the duplicate questions, asking not to post the same question to multiple sites.

In particular, let the OP know, in your comment, that it is OK to post an Emacs question on SO or here, but please do not post the same question on both sites. (Same goes for other sites, besides SO.)

IOW, the message (in a comment) should be: Please choose one (site).

  • Why do we ask that people only use one site? Provided the questions are asked by different people, what is the benefit of the restriction? It ensures more information is available on each source. – Jack CC Sep 3 '16 at 18:36
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    I meant that add such a comment only in the case that the same person posted the same question on different sites. Sorry I didn't make that clear. I've added that explicitly now. Thx. – Drew Sep 3 '16 at 21:49
  • Ahhh, ok. Thanks! – Jack CC Sep 3 '16 at 23:33

The Stack Exchange (SE) community is for Questions and Answers. Thanks @ScottWeldon for useful links. Let's look at the Questions and its relation. The Questions might be the same or similar. The example of the same question is in the my question above.

The main point is that different SE sites is the different communities, so each question might be more than one site, especially of it is the crossover question.

But Questions in different community could be targeted to different points of view. So, I think, good practice for the same Questions' answerers now is to give Question a comment with link to the same on different SE site. For similar question this might be point of interest to view another Question and Answers (Q&A). So, the good practice is to make a link between similar or the same Questions.

The Answers on emacs.SE or Stack Overflow have different direction, so it cannot be just joined and Question be set as one crossover question. The crossover Question might be one (in my opinion), but the Answers must be divided into the separate communities with links, of couse. Or the Answers might be marked with community label etc.

Closing by off-topic reason have enough clarification in Q&A and Help sections of the SE community. This links between the sites could be the first stage of the mentioned crossover questions.

And for askers: before asking a Question, good practice is to make a search through SE Q&A and gave in your Question information about why the similar or looking the same Questions is different from you. If there is no difference why you are asking for?

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    I'm pretty sure it is SE policy not to close as duplicate a Q that is on another site. Cross-referencing to an existing Q on another is OK, but is not a substitute for answer the similar (or even duplicate Q on this site. On the other hand, when a user posts the same Q here and on SO I add a comment to each Q asking not to post the same Q to both sites ("choose one"). Users should know that they can post Emacs questions on SO or here - either is OK. – Drew Aug 23 '16 at 17:36

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