That guy seems genuinely nice and has a bit of knowledge as well, even admitting a bit that 'audiophile' means convincing yourself that a lot of money should bring improvement. Shame he believes in his stuff, it's like humanity lost another being. I honestly believed it was a joke, given the channel name, wacky intro and CD hack.
I have a really nice friend that is into electronics and mechanics as well and is well-versed. However, he has been repairing and tuning his beat-up bike for a few years now, each time claiming a 10-100 horsepower increase. That bike should be well over 1000 by now.
I had a nice girlfriend once who convinced herself of many things since childhood. It's a shame she had to go, but one loose screw meant a possible breakdown down the road.
We have a word for them: liars. It they believe it it doesn't make it true.
Mild offtopic but I was 90% convinced the practice of adding decreasingly small filtering caps in parallel to power supplies was falling into the same category as audiophile. Same thing was happening with rectifier diodes. Now I'm not really sure, in fact I'm leaning the other way, given that both caps and diodes have inverse proportional bandwidth given a capacity/amperage. Still not sure how that works with 50/60Hz but maybe someone can enlighten me.