In order to communicate effectively you need a mental model of your audience. The same sentence can be cumbersome to some readers, just right for others, and even condescendingly simplistic for a small minority.
The fact that you found the article to be useful simply means that you are part of their target audience, which is great. Just keep in mind that the same advice will not work as well when you communicate with a different audience
My context with using english in general (like here on HN) is communicating as a non-native with both native speakers and non-native speakers. For some of those, just reading english is a challenge.
Since I also know I can easily write nonsensical sentences, I thought this article was a good reminder on how to safely stay in the "I make sense" area in this context, and as so disagreed with person I replied to ^^
I would definitely have higher ambitions regarding "tone" in my mother tongue though, but for english writing, I'll be happy if I can be clear !
The fact that you found the article to be useful simply means that you are part of their target audience, which is great. Just keep in mind that the same advice will not work as well when you communicate with a different audience