Actually, the StackOverflow systems encourage that, in a gentle way, by encouraging you to slot questions into concrete categories. If you've accumulated enoug

Actually, the StackOverflow systems encourage that, in a gentle way, by encouraging you to slot questions into concrete categories. If you've accumulated enough cred to have access to those tools, you'll see that they present you with possibly similar questions that you can browse. Volunteers with little time and a lot of items in their queue are probably likely to notice similarities in the questions and just choose the 'identical question' option, and then move on. More detailed feedback on the question itself is hard to give, and for every one that can genuinely be improved by feedback, there's dozens that are unsalvageable, or truly are duplicates.