Testing Ethernet switch

Clowns:  people who pose as experts but lack credentials such as certifications and publications in appropriate technical journals.

fredrik222

... but facts remain ... 100% of people with knowledge of the topic hear no difference. This is what a randomized control trial would call placebo effect.

You may well be correct. If none of those subjects heard a difference, it's possible that their expectation that there would be no difference biased their observations.

Fabricated statistics- another clown move.

Still no identification of either factual errors on my part or what the mystery "other things" may be. 

A psychiatrist might be a better fit for your discussion.  Psychobabble, by Alan Parsons Project.