One possibility is that, according to some posters, this thread is "philosophical" and "academic."
This is the part I find most puzzling. I realize that there is a certain anti-intellectualism running rampant in certain circles in the US these days, but I'm surprised to find it in the audiophile world of high-end music, aesthetic appreciation, and outrageously expensive equipment with no other purpose than personal enjoyment. All of which activities are, in a word, elitist. Leaving aside what historically happens in countries that let anti-intellectual demagoguery gain political sway, it would be hard to find a country that has benefited more from academic exercise than this one. From our wealthy, intellectual, elitist founding fathers dabbling in political philosophy and coming up with the Constitution, to a bunch of egghead scientists who for decades pondered quantum mechanical weirdness that had no practical use... until it did, to people like Nelson Pass sitting around trying to figure out which transistor "sounds better," we are the daily beneficiaries of activities that were, or are, largely academic. And that says nothing of the value of purely academic ideas in educating the minds of all the millions of people who, by learning to think rigorously, went on to do something "practical."
Personally, I have found this thread enormously valuable. I have had to think, in detail, about a number of concepts that I only had a vague notion of before, which has helped clarify my thinking and improved my understanding of the role of these concepts (and their interrelationship) in the audio chain. And by discussing them and holding them up to scrutiny, I feel I better understand their limitations.
As for practical use, the thread started with a practical suggestion, and others have been made as the discussion progressed. My own conception of neutrality in terms of entropy (which is probably not original, but I don't know otherwise), has the potential to be a usable technique. Entropy, as discussed, is an actual, measurable quality of information. Were it to be measurable to a degree that would allow the detection of playback colorations (and I think it probably is), and were it to be correlated with listener experience (and I think it could be), it could become a quantity that was reported alongside other component measurements, like THD, channel separation, frequency response, etc., to help people choose the best component for their needs.
Tvad:
This discussion is analogous to juggling water.
Where audiophiles are concerned the analogies that come to my mind have more to do with bringing horses to water, and herding cats. As Bryon points out, there are seventy eight thousand threads on this site alone. Is this one really so dangerous and disruptive?