I was debating whether or not to title this post as it did, but after the 3rd non-compliant PSU, either I method is not the best or there is something very wrong with certification.
I am not an electrical engineer but took some courses and have dabbled with hardware for more than two decades now. I have used all the type of bad PSUs one can think of but soon realized that is not the best idea. I have posted my list of good PSUs a while back.