Because, even after reading a few resources, in particular on TeX.SE, I don't get it.
Is it applied in this stackexchange differently than in other SEs ?
I signed up 12 years ago and contribute now very rarely on TeX.SE, and I felt like a clueless newbie.
The TeX.SE community gave me quickly the hint I needed in comments to the first version of my question. I felt this was the end of the matter. I tried to put these comments together as an auto-answer.
Then my question was closed as "opinion-based" after two days
I deleted from my original question what could be viewed off-topic considerations.
The question itself is unimportant to me. The question can even be deleted if the editors feel like it.
But even the wording "opinion-based" has the taste of an offense or a misdemeanor. I don't recognize the inspiring spirit I felt when I SE started.
In my native language "opinion" is not a dirty word anyway, and perfectly compatible with digital technical communities.
Please enlighten me, I want to understand.