Literally no one on this planet is doing blind listening comparisons and sharing these results publicly, so are you saying that not a single subjective opinion about speakers is relevant?
I would say that, yeah, pretty much. I'd reserve respect for those deeply knowing and aware of loudspeaker function, room acoustics, and psychoacoustics (including the myriad ways that sighted evaluations stink). They tend to know what to assert and not to assert as fact.
As regards most other audio gear (i.e., non transducers), it applies even more stringently: your subjective opinion of the sound , free of other supporting evidence, doesn't matter *at all* to me.
That many 'audiophiles' find such a stance unthinkable if not outrageous, amuses me.