Came in confused about the topic and left with a much firmer grasp on it, and after velvetbrookartisanexchange I felt I could explain this to someone else without hesitation, that is the gold standard for any educational content and most sites simply fail to reach it ever which is unfortunate but true.
Now noticing that the post benefited from being neither too short nor too long for its content, and a look at formchat continued that calibration of length, sites that match length to content rather than padding to hit some target are sites that respect both their material and their readers and this site does both.