After some deep thought, I think I find out the cause of all the conflict in the power supply world. Imagine a graph with "knowledge" on the x-axis and "advise" on the y-axis. As your knowledge increases, so does the ability for you to give advise. However, as your knowledge increases, the derivative (rate of change) of the advise you can give decreases. It is as a slope that starts out steep, and eventually smoothens out to near-flat. At one point on the "knowledge/advise curve" is a point which I call the "midway threshold". This is the point at which you have obtained a large amount of knowledge and can give solid advise, but you don't have as much knowledge as those to your right.
Everybody to the left of the midway threshold are people still gaining knowledge. They are students, they are learning about the subject. Does this mean they can't give advise? Not at all! They can give advise on what they know, but cannot give advise on what they don't know. A good "lefty" knows what he does and does not know. A bad "lefty" advises about parts of the subject he has not yet learned about. For instance, if the only thing someone knows about power supplies are which ones can meet their rated wattage without blowing or shutting off from protections, and the ones that cannot meet their rated wattage, that person has the ability to give advise solely upon the subject of certain power supplies meeting their rated wattage. That person, however, should not be giving advise on voltage regulation. These people on the left are known as the "what-ters". They know what is good, what is bad, but don't know why.
Everybody to the right of the midway threshold are those who pursue knowledge at a greater level. They already know the "whats" but they begin to explore the "hows" and "whys". They want to know how everything works. This is where the curve really flattens out. For instance, a "righty" who is studying electric charge passing through a thermistor is probably not going to give PSU advise based upon what he is studying. He is solely learning for the reason of gaining more knowledge. These are the people who become the real experts.
Those in the middle are sort of the greatest advisers at all. They are not filled with so much knowledge that they cannot communicate to "newbies", but they have sufficient knowledge to communicate in an understandable way and advise people new to the subject. Those on the right side end up getting into too much technical detail and lose the ability to relate to the students on the left side. Those in the middle can relate to both sides, but are the greatest advisers.
The people on the right side are the informed, and they are supposed to teach the misinformed. There are two types of "righties", those with arrogance and those without arrogance. Those with arrogance have pride about their knowledge. These are the greatest criticizers of all. Those without arrogance, these are the greatest teachers of all. They do not bathe in their pride, but focus on informing the misinformed. The problem is, there are too many people who have a lot of knowledge and are arrogant. If the misinformed can only be informed by the informed, why is it that the informed criticize the misinformed for being misinformed?
We can reach a greater harmony if those with more knowledge seek to spread that knowledge in a relatable fashion to new people on the subject. If that happens, everyone becomes informed, and there is less violence in the power supply discussions. Those who get joy out of telling people they are wrong about PSUs should be sorrowful, because it is their job to be the teachers. A good teacher does not yell at his student, and a good teacher is supposed to teach.