“Finally, try to write the best version of your paper: the one that you like. You can’t please an anonymous reader, but you should be able to please yourself. Your paper — you hope — is for posterity. Remember how you first read the papers that inspired you while you enjoy the process of writing your own.”-Van Savage and Pamela Yeh, “Novelist Cormac McCarthy’s tips on how to write a great science paper.” Nature. September 26, 2019.
tl;dr, roughly paraphrased: Cut out everything unnecessary. There should be two or three points the reader takes away from reading your post or paper. Limit each paragraph to a single idea, (Minto, anyone?) Keep your sentences short. Don’t digress. Don’t overdo it, or try to anticipate and defend against every tangential question. Use the grammar of speech. Use questions, informal speech with concrete examples. If you use math, separate it out. Read the finished draft aloud and fix what doesn’t sound right.