Night Rider, my irony circuits have fused in the sultry heat of this afternoon, so if you were on the wind-up, well done. If not, here is my po-faced response to your post above
Suppose that I want some basic ppl instruction, refresher training, differences, aeros etc. Suppose also that I have no intention of ever flying for reward and wish only to pursue aviation as a hobby, but one in which I aim to perform to the best standards. Suppose that I can choose between a guy with lots of exams and, lets say, 600 hours on C150s/PA 28s plus some time on twins, or a "Sunday afternoon" guy who has 4000 hours, 40 types and knows who Geoffrey de Haviland was to boot.
Guess which one I'd choose?
NB this is not intended as any form of slight on the many excellent instructors going through the ATPL system. Although my main instructor was a Sunday afternooner (his day job is in military flight safety so you can see what an amateurish sort of chap he must be), I also flew with two hour-builder guys, both excellent pilots and committed teachers (one is now in a 737, I've lost contact with the other guy). My point is that you should not be so ready to discount the contribution made to GA by the Sunday afternooners, many of whom have a background in and commitment to aviation every bit as valuable as anything the well-examined have to offer.
If we're talking men and boys, does passing commnercial exams equip you safely to land a Tiger Moth in a cross wind or, better still, teach someone else to do that?