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I am a bit confused on our policy for open-problems. Are we allowed to post a technical/narrow conjecture/open problem on MO? For example, here is a type of a beautiful question that I have in mind ...

There is an interesting discussion taking place at MO over the suitability of this question: Complex structure on $S^6$ gets published in Journ. Math. Phys. The question is about the correctness of a ...

I would like to know, whether it is in the line of MO rules to present a result and ask for "opinions" like whether it is already known or worth pursuing and, who might be interested in the result. ...