The title of my question exaggerates a bit to stress its point, but it concerns a class of questions where the OP seeks advice on basic human communication with a professor. I have seen many many question on academia.SE where the OP has some basic inquiry to make and is seeking advice about how to talk to or email the contact person, usually a professor. Often the enquiry is a basic one involving normal administrative matters, with no special issue that makes it especially difficult or arduous, and it is unclear why any special advice would be required. There are many examples of this, but here are a few of them:
I have not seen questions this basic on other SE forums. I find them rather annoying, since they lack any real substantive content on academic matters, and instead ask trivial questions about how to undertake basic human communication. Pretty much every question of this kind is answered by this general question, but most of them strike me as so trivial that the simple answer to all these questions is: you tell/ask them that thing you want to tell/ask them. Some of these questions are already marked as duplicates of that general question, and this is desirable. In my humble opinion, it would be a good idea to either close or mark-as-duplicate all questions of this kind.
I suspect that many of these questions come out of a sense of nervousness that students, etc., have when they want to communicate with academics. The implicit premise in these questions seems to be that professors are some kind of sanctified emperors and you need to seek detailed advice on etiquette before speaking in their presence or sending them an email. Answers often give some help with forms of words to use, etc., and this is a good attempt to help, but it has the side-effect of reinforcing the view that some special advice is needed to speak to an academic.
My question: Are questions of this form off-topic? They strike me as having minimal to no academic content, and the OP is essentially just asking about basic human communication. If not considered off-topic, are they merely trivial duplicates of How should I phrase an important question that I need to ask a professor?
Follow-up: Two answers have raised the possibility that questions of this sort might come from questioners with different cultural experiences who need assistance with basic communication skills. In such cases, we can also refer questions to InterpersonalSkills.SE.