This question: Why cat, grep and other commands can't understand files starting with minus sign? was marked as duplicate of this question: How do I delete a file whose name begins with "-" (hyphen a.k.a. dash or minus)?
disclaimer: I posted an elaborate answer for the why-question.
The text of the how-question is straight forward: how to solve the problem?
The text of the why-question reads more like a rant. One sentence in the text actually does ask how to solve the problem. The title is, IMO, dominating the question: why does the problem exists?
If it really is a duplicate then when the answers are merged the answers of one question should also answer the other question. In this case my answer for the why-question feels very out of place in the how-question. As well as the answers for the how-question feel very incomplete in the why-question.
Is it policy that why-questions are generally considered duplicate of how-questions?
If I edit the text of the why-question to remove that little reference to "how" and enfore the "why", would it be reopened?