In my process of studying math, I am often amased by how much different understandings of the same concept can really deepen one's comprehension. And I am also shocked by how much a wrong or incomplete understanding can slow down one's progress or even leads him/her to the wrong path. I am sure both cases have happened to everyone. But for the 2 months I've been on this site, I have hardly seen such problems. There's proof/solution-verification but no understanding-verification.
What I am picturing is: a poster asks a question, in which he/she states his/her understanding of a specific topic. If it is wrong, then other people can correct it; if it is incomplete, then other people can complete it or even enrich it with their own understanding.
I don't think this type of question violates any code of this site:
(1) Showing efforts: the poster must have been thinking to ask such questions
(2) Specific: it can be about the understanding of a very specific topic
(3) Answerable: it cannot be more "unanswerable" than proof/solution-verification type of questions
So why is it so rare? Is it not encouraged here or have people simply never thought of it?