At BER people also like to complain that no experts were brought in, but politicians wanted to act as construction managers themselves... in house construction it unfortunately seems normal that people completely unversed in technical/craft matters think they can handle it themselves.
That's what comes out of it. Unfortunately.
The main thing is to have "put in one's two cents" here and then complete nonsense as well.
I am often annoyed by the many abbreviations in the forums, which I also often cannot "translate" through an internet search (...)
On the other hand, it is also true that you should rather get an expert to accompany you if you already have difficulty with all the abbreviations. That way, disasters like the one with the plaster here do not happen.