You are right that evaluating such a post is a lot of work. And may be my suggestion in this case was wrong.
But for example, in another topic, where @gilshultz also sent a huge piece of AI-generated text - I think that his message is, at the very least, premature. And perhaps it turns the questioner in the wrong direction.
In that discussion, the author asks why using a PWM affects the Serial output. I think it is impossible to answer here accurately without a diagram and full code.
@gilshultz message immediately directs the author to eliminate standard problems of electromagnetic interference, although the problem may be completely different.
The main danger of such answers is that they look convincing and make an impression on a beginner of the answers of an experienced person, although in fact they are not.