"Here's a really, really basic business concept, presented in about ten times the number of words it needs. PLEASE SIGN UP FOR OUR PRODUCT."
Good observation, and humour points for the light-hearted snark. I don't quite disapprove of these articles, but I agree once you see the pattern it is rather ubiquitous.
Where I am with these at the moment is questioning whether the person would have written it anyway and is tagging their business into it (reasonable) or writing something specifically to increase their visibility (I'm more skeptical).
Occasionally I imagine such a writer sitting at their desk with "the big book of business basics" saying "which one shall I write up today and post to HN to obliquely promote my product?". But then, if they're sharing something of value then do I even care? The ones which seem dangerous are those which have distorted something of value to specifically relate to their product. There was one a few months ago (re)defining "Technical Intelligence" in a really confusing way in an attempt to tie it to the business in question - absolute train wreck.
This article sounds like someone with basically no real-world experience quoting a professor (possibly) out of context (because, christ, what an asshole as a CFO) and over-simplifying an actual problem to make such an extremely obvious point it should probably go without saying.
I'd love an actual discussion about dealing with late-paying clients. This article contributes nothing. In fact, it makes the claim that not paying your bills on time is just fine! As long as the person you owe isn't constantly pestering you about it, hold on to that cash! Suckers! Sorry: That's not just fine and if you consistently do it, you're going to earn a nice reputation as someone who's a pain-in-the-ass to work for because extracting payment takes forever. It's not up to the person you hired to bug the shit out of you until you decide to grace them with payment for their work.
As far as advertising Hourglass and the FREE GUIDE that's plastered all over that page... More harm than good. Because they clearly have a very amateur view of how business works.
Also: That's not why I'm getting paid late. I get paid late for a variety of reasons.