Is this question OK, I'm not sure wether it is on or off topic?
Questions about "why wasn't my app accepted/rejected" or "what's the status of my app" should be addressed by the representatives of Canonical. We've consistently closing them as we really can't help those users. There's a contact form in the bottom of the Canonical page which should be used.
Sure the question is acceptable. And if the answer is useful to others, then it should stand. It might well be duplicated a million times, so the pointer to the original answer (which should include a link to Canonical) will be a good answer.
If the question is duplicated a million times, then I guess it qualifies as a Frequently Asked Question, and the answer would appear in the FAQ.