I've used SE and SO, only to ask questions to which I didn't know the answer.
But there may be another way to ask questions:
- From a text book or other canonical reference (History, C++, etc., depending on the site)
- Find (a large number of) facts/statements which are not already topics on the SE site
- Rephrase them in the form of questions, post the questions on the site, and answer them yourself if nobody else does
May I ask:
- Does this ever happen, do people sometimes try to do this, on SE sites?
- If doing so allowed (welcomed), or forbidden (discouraged), on sites that you know?
- If it's forbidden then on what grounds, what's the close reason?
- Or do you allow the questions because they're on-topic, but suspend the user for "consistently low quality questions over time"?
On the one hand you could maybe argue it's on-topic -- that part of the purpose of SE is to become a Wiki in Q&A format -- and that these topics help users study the subject.
On the other hand these topics may be kind of tedious or mechanical, and miss the point of a Q&A site where you can hope that genuine human experts will address "practical, answerable questions based on actual problems that you face".
Edit to add -- I don't think this is a duplicate of this meta-topic:
That's primarily about whether you're allowed to answer your own, on-topic questions.
This is primarily about whether you may generate an unlimited number of "on-topic" questions, by rephrasing (or referencing in the form of a question) the many statements in text-books.