I agree with the notion that most differences are not going to be audible unless swapping a unit out for a "statistical outlier" (as alluded to on page 1 of this thread). I'd go further and suggest much in the audiophile world is basically a form of OCD. Much like how some women will obsess over their figure and self-perception about attractiveness, I think some males in the audiophile world are actually obsessed over high-cost status symbols (at least subconsciously) and it feeds in to their own self-perception and self-worth Since self-worth and esteem is psychologically a foundation for one's perceived security, it's no wonder than any assault throwing down the gauntlet on a personal world view is typically met with scorn.
As ahofer hints at in regards to being a successful investor, the human condition is to lie to ourselves and believe those lies. The other problem is where the exception is people genuinely hearing a difference due to statistical outlier products that are measurably audibly different. For those, the problem is the OCD hankering for 'better' and confusing 'different' for 'better' but always making sideways moves over time and becoming perpetual box-swappers. This latter scenario reinforces the audiophile view that not all DACs, amps etc sound the same, but rather, there are differences to be had and objective science appears wrong. Thus it can entrench beliefs contrary to objective science.
But appearances, as they say, can be deceptive. It's not so much that audiophiles need an education or don't understand the science-based arguments, but that tipping over peoples world-views, self-perception and security in one fell swoop will be resisted by human nature itself. We tend to want to rationalize our perspective as 'right' in our experience, even when we are wrong. It's a rare individual who will simply acknowledge being wrong and do an about face on their beliefs. Good scientists do, but tend to have learnt to trust observed data from a young age, so they don't develop beliefs based on subjective experience the way most people do.
While this website is good for those of us who are either science-led, want to be science-led or have gone through the mire to have our eyes opened, it will not change the human condition quickly. I have friends who know I lean almost exclusively to the scientifically objective side of things and have bought equipment based on specifications alone, yet they still don't want to try ABX tests despite a few of them actually being scientists in illustrious fields - they still will pay significant amounts for things Amir (and many scientific tests over decades) have shown time and again will make zero audible difference.
All this then leads to objective audiophiles and science, vs subjective audiophiles and the "just listen to it" mantra, but...
People innately trust daily experience over scientific data - even the scientists. For example, when you drive across a bridge you likely exercise a belief it won't collapse. It probably doesn't even come to mind, and you do not give a second thought to whether the engineering plans and math on how it handles stressful forces have been undertaken correctly (or at all) so as to objectively know it won't collapse. Therefore, while you can rationalize being an individual who believes in science, the mere fact you believe its been done correctly without checking means you exercise a belief without supporting data. This is much like the sales pitch for the engineering in all manner of products that people fall for. They haven't checked the validity of the claims, but are happy to place a belief in some claims just the same. So whether there's real science or snake oil behind an audio product, or a bridge design, it makes no difference - people's first inclination is to believe in a positive outcome for which they've seen no empirical data. Life would be unlivable if we had to check empirical data first hand for everything.
So the problems of unravelling audiophile thought processes are not going to be won simply by websites like ASR, or forcing unobjective audiophiles to take ABX tests. This is a personal journey for all who love audio about wrestling the faults and frailties of our own human condition and our tendency to lie to ourselves. Like Neo in the Matrix, we either wake up to the real world, or, like Cypher, choose to enjoy the experience of a steak knowing ignorance can be bliss.