Ah I see.
I was thrown by your talking about the contrast one finds in forums like this between the appeal to the objective vs the subjective, and that you felt you were identifying a "crux" of the matter. My view is that this is not the "crux" of the contrast between the two approaches (it is the epistemic divide I argued for).
However, if I understand your clarification, we are to presume (at least for sake of argument) those subjective preferences that are veridical - that true sonic differences were heard, resulting in the impressions and preferences.
So for instance if we take two speakers that measure quite differently, with audible consequences for their character, then we can imagine a subjective approach vetting the design simply based on one’s subjective impression, vs an objective approach vetting the design on measurements, data etc.
I still think this needs some conceptual clarity. If we are ONLY talking about "preference" then, yeah, so what if you like X. Doesn’t mean I’ll like X. That’s kind of obvious and I can’t imagine anyone thinking this is really the "crux" of any matter here. Preferences differ, we all know that - I don’t think anyone takes mere preference as informative about how gear performs. The exchanges that actually seek to be INFORMATIVE here, including from "subjectivists," are an exchange of subjective IMPRESSIONS and descriptions of gear. So I have to presume we are talking about the more interesting question of whether purely subjective IMPRESSIONS or descriptions - "I liked X speaker because it has THESE characteristics...." can be informative.
Ok, then, as someone with a foot in both worlds I’ll attempt an answer.
I’m an "objectivist" in the epistemic sense I described earlier. I do not take my subjective impressions to be the absolute authority, delivering unvarnished Truth about the performance of audio gear. On the other hand, I sometimes don’t care that much about measurements and prefer ultimately to hear a component (speakers especially) for myself. To be consistent I scale my claims to the evidence I can present. If I think I hear differences between two different speaker designs, the plausibility that I’m actually hearing different sonic characteristics is very high, so my suspicion of my subjective impressions won’t be undercutting.
If I think I hear a difference between, say, a tube amp and a solid state amp, that too is technically plausible...though not as sure (depending on the amp designs) as with the speakers. Hence I scale my confidence (and any claims) downward. If I think I hear a sonic difference between 2 well designed solid state amps, on technical grounds (given how low distortion would be with each amp), I’d scale my confidence level in my impression, and any claims I made based on that impression, well down (fully understanding any skepticism of the claims based soley on my subjective impression).
So I know how to play nice with the "objectivists" (which I often mingle with over on the ASR forum, for example). HOWEVER, I do find that the objectivist approach can start to become too dry, too reductive. Everything comes to us through subjectivity, and much of human interaction involves our attempt at describing "what it’s like," and we are often successful enough in this to arrive at useful intersubjective agreement.
When I listen to music through a sound system the amount of subjective details are so rich, they just aren’t adequately described or conscribed by something like "speaker has 3dB boost at 1k" or whatever. That’s a technical description...but a 3dB boost at 1K "sounds like" something - It changes the subjective experience, the sonic impression, of voices, certain instruments etc. It’s that "sounds like" character I’m interested in, and I love to exchange subjective impressions on "what things sound like."
So I place high value in exchanging notes with other audiophiles regarding our subjective impressions, and on (well written) subjective reviews. (Whereas these are much disparaged as unreliable or simply made up b.s. and imagination, by the "objectivists" on ASR).
Ok, so having said all that: I can’t necessarily tell YOU what YOU will accept as informative from my subjective descriptions. But I can tell you what I can get from careful subjective descriptions.
Over the years I’ve come to note how I respond to certain sonic characteristics - e.g. I seek a sense of "density" in the sonic images, of solid air-moving mass. I seek a sense of "organic warmth" where appropriate - voices sounding like flesh and blood, the wooden instruments having that recognizable woody timbre, reeds sounding "reedy" brass "brassy" as I recall those things. A "disappearing" act for the speaker with expansive soundstaging and precise imaging. A sense of presence and texture - the subtle texture that makes a bongo or bowed instrument sound "right there" rather than something encased in glazed amber, removed from me. Etc.
When I read a subjective review, or read the report of a well-spoken audiophile, and see that they notice and care about some of the same things I do...that they seem to "hear like me, care about what I care about," that makes me sit up and take notice.
And if for THEM the gear is ticking those boxes, that in of itself may be enough to make me feel it’s worth seeking out an audition. My confidence level increases once I’ve heard some products that these audiophiles have described, and found that, yes, the product DID have the salient characteristics I was looking for, as was described in the review. Paying attention like this has led me to some very satisfying gear, including purchases. (E.g. Michael Fremer’s original review of the Conrad Johnson Premier 12 amps I own is so bang on, in terms of describing what I hear, it’s eerie. I was also led to the Audio Physic Virgos early on via his review, which also sounded just as he described).
Another for-instance is having read Art Dudley on the Devore Fidelity O-series speakers. Some of the characteristics he cares about, and described hearing in the Devores matched some of what I was seeking. Several other reviews were consistent with Art’s. When I sought out the Devore speakers they did indeed have JUST the qualities described by Art, qualities I found immensely attractive. (In this case, a rich, full sound, that was also vivid and smooth in upper frequencies with immediacy and texture, along with a sense of dynamic ease an "life energy" to music through those speakers).
Another example for me are the Joseph Audio speakers. They don’t sound like the Devore speakers, but they do other things that I also love. In particular, a combination of clarity and relaxed warmth, a purity of tone that sounds incredibly grain-free, revealing the exactness of instrumental timbre. These exact qualities were described in virtually every Joseph Audio Pulsar (and Perspective) review I could find. The reviewers almost to a one NAILED the sonic descriptions of "how these speakers sound." And in that sense I find the reviews informative and useful.
I used to write reviews a long time ago and the most gratifying aspect was how many people wrote to me that they heard the item under review and that I’d described "exactly what it sounded like" to them. So the fact I have found sonic descriptions from some other audiophiles accurate, and some have found my own descriptions accurate to what they hear, gave me some optimism that purely subjective descriptions could be informative and of some use.
So, speaking to your challenge: how can I convince you that I might have something informative to tell you simply based on my own subjective impressions and preferences? I think it’s up to you to make that connection. For instance, you could go through some of my thread where I do nutshell impressions of lots of speakers (as well as extensive impressions) and see if they seem to match anything you have heard. If so, you might start to grant some credence to my descriptions of gear you haven’t yet heard.
Here’s my thread: