At this question: Usage of "do not " vs "does not", I saw the following in a comment:
As Reg Dwight has said, '[W]e write stuff in comments that is too obvious to qualify for an answer. [This] is not really a topic for a site for linguists and etymologists, and we don't want it to become a topic.'
Is this just something that those in the know have gradually figured out, or is it articulated formally somewhere?
-- Edit -- Or something else (if so, please politely explain). I feel like I've come into the movie theater in the middle of the movie. Please, help me understand what's going on in this site and what is expected of me.