A continent wide drill simulating a downed electrical grid gets his attention, and he sets it against a real blackout he remembers spending outdoors with a friend, running around the city in the dark. Lincoln Campbell concludes the whole exercise sounds like nonsense and says so twice in the same paragraph, which tells you how much polish to expect.
Two posts review coffee companies, complete with compensation details, and they are promotions rather than assessments.
The genuinely useful one explains what a feed is and where it lives, written for people who have seen the letters for years without ever finding out. Another takes advertising on Facebook seriously, working through who you could actually reach rather than treating the platform as a switch you flip.
Eight posts and no more. Take the feed explainer and the advertising piece, and treat the coffee posts as the sales material they plainly are.