This question already has an answer here:
- What to do with cross-site duplicates? 6 answers
Today, I saw this question on Super User. The first comment pointed out that it had been answered on StackOverflow. Would it have been appropriate to flag the SU question as a duplicate of the SO question, or is the dupe flag specifically intra-stack?
Note: I have not so flagged it; I don't have enough rep on SU to be able to know whether it has been so flagged/VTC'd.