That reminds me of this (shared before):
“There is a cult of ignorance in the United States, and there always has been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that "my ignorance is just as good as your knowledge." Asimov "A Cult of Ignorance", Newsweek, Jan. 21, 1980
We all have opinions on pretty much everything. But my opinion re an instrument approach is probably not as useful or even accurate as that of a well-seasoned CFII and the same re my opinion of an engine issue and a well-seasoned A&P.
The challenge for forums like this is remembering we’re typically listening anonymously to SGOTI and many people come here more for support of their beliefs than informing them, so they’re likely to share things which can be specious. The trick is honestly discerning one from the other.