There comes a point where honest ignorance becomes willful ignorance. It’s not like they don’t know the scientific side of the debate. There is no excuse.
This is the answer IMHO. Every hobby relies on the artificial expansion of the allegedly Unknown, and the endowment of tiny variations with large meaning. This is done to maximize the space and opportunities for people to explore and have fun - and of course it also expands the market and the profit potential for the trade in items related to the hobby, because it creates new desires that people are willing to pay a good deal of money to try to satisfy.
With non-engineering/science-reated hobbies like, say, vintage toy collecting, this expanded zone of the Unknown makes people feel compelled to collect all the minor variations of a 1950s Matchbox car or the early production run of a 1970s Lego set where one part had a slightly different mold. There the damage, if there is any, is about folks becoming obsessed with completing their collections, which can become very expensive and make the pursuit of purchases more important than enjoying the items themselves.
With audio gear this takes the form of "the journey" - but the nature of the hobby requires an additional kind of damage to be done, and that's damage to scientific truth and engineering knowledge. I find it absolutely, positively implausible that JA honestly believes that all six of the factors he cites could play a role in the sound produced by audio interconnects.
I do think it is perfectly plausible that he might honestly feel that one or two of those items (most likely the 1st and 2nd factors he cites) might make a difference, and he honestly isn't sure about it.
But even with that, he is
still consciously and actively participating in and reinforcing a culture in which such uncertainties are never to be investigated to the point where they might be definitively proven or disproven - because that would collapse the artificially large sphere of the allegedly Unknown and pop the balloon that makes an article like Reichert's able to be published at all. There's no way in the world that JA doesn't know his comment will be used as a "good enough" hook for those who Want To Believe to hang their subjectivist hats. To that end, his remark to Archimago about how "what I don't understand is why someone would dismiss any of them out of hand" is just repulsive.
He should of course feel free to post what he wants, but I don't find anything to commend in his comment in that discussion, and the article itself is a bad joke - from "Changing audio cables
always changes the sound of my system," early on, it's clear there's no point in reading the rest. I did anyway, in case someone accused me of not being open-minded, but that's 10 minutes of my life I'll never get back, and I can in good faith strongly recommend to others that they not waste their time reading it.