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9:43 AM
Since you are one of the answerers there, I'll ask whether adding the tag would be reasonable for this questions: Is it a “rule” of Math Stack Exchange that when asking a question, it's never good just to state the question?
This question linked there seems to me as a definite candidate for the tag: Is it appropriate to close every question that doesn't show efforts and/or lacks of context? (The only question whether it is worth bumping just for that.)
 
 
1 hour later…
10:58 AM
Is that a bad idea to post like [this](https://math.stackexchange.com/questions/3427661/) ?
I wanted to make it a big-list question for refering for some undergrad-level users, but I got unsatisfied response, so I think maybe my post didn't obey the spirit of MSE.
 

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