You seem to graze the subject of genuineness in distinguishing good writing from mere marketing. The reader's perception of your genuineness is the key to gaining allies and followers. Yet, so much human effort is wasted on brute-forcing others into submission instead of leading by example and proposing ideas based on their merits.

#5 ("Treat people who know less than you with respect, deference, and patience.") applies not only to non-programmers, but especially also to lesser experienced programmers. Some of the biggest assholes I've ever met were some of my coworkers in my first professional development experiences.