Consider a question of this type: “My task is to prove […]. Here's my attempt: […] Is my approach correct?” I've seen several questions like this being closed as duplicates. To be more precise, being closed as a duplicate of a question of the type “How to prove […]?” In my opinion, that doesn't make sense. It would only be a duplicate if the other question consisted basically of the same attempt of proving the statement.
An example can be seen here. I've re-opened it because, by the reason explained above, it doesn't make sense to me that this is classified as a duplicate. And much less an exact duplicate.
I would like to know what other users think about this issue.
Please note that this question is not a duplicate of this one since that other question is, in fact, not a question. It is a proposal in the sense that questions which consist of verifying a proof should be closed, after the verification of the proof has been dealt with. I made no proposal. Instead, I have expressed the wish of knowing how other users deal with this situation.