The patterns Julia gives absolutely distill the bad practices when well-intentioned people try but fail to explain something. In particular, you can see examples of "inconsistent expectations of reader knowledge" and "starting out abstract" ALL THE TIME in stackoverflow. Someone will ask a specific question about a problem they're having but then have their question closed as dupe and referred to another related (or…
If there's a good, general answer to the question, then it's on the asker to expand their knowledge as they need to in order to understand that general answer.