They’re not “pretend terms".
They’re subjective qualifiers. What they’re not is objective quantifiers.
I wish you were being subjective. Throughout this thread I have encouraged using subjective terminology like you really enjoyed the sound. That is subjective. No measurement can eek out that sentence.
No, what you are trying to do is actually being objective and technical. A term like "harmonic structure" is term that utilizes technical terms, "harmonic" and "structure." We are desperately trying to add objective support to our listening observation as to make them be more correct. So we have created these terms without ever understanding what they mean.
It is not like you had a system with on/off switch for Harmonic Structure where you could instantly learn what it means for it to be there versus not. We have built up a vocabulary of these technical terms that we routinely throw out there as to length the review and show authority in us as a reviewer. But they have no real meaning.
They do have a colloquial meeting among subjectivists though. They mean something sounded good. That is it. So why not just say that?
I can put together a system that according to one person, one has microdynamics and the other does not, and run 10 audiophiles through without them ever agreeing on that pre-assessment.
Now compare this situation where I build the same two systems except that I boost the bass at 50 to 70 Hz by 5 dB in one of them. I assure you that a lot of people would say the bass was boomy or too high. This is a subjective term. Yet it is properly descriptive to actually have a meaning.
You want to be subjective, be subjective. Don't attempt to use objective terminology without any real meaning. In some sense, I would take the use of natural way, way ahead of these terms. At least that word is not trying to be overly technical like "microdynamics."
Be yourselves. Don't try to use objective terms which have nothing to do with objective evaluation of audio. I mean even subjectivists must get tired of reading for the thousands time that some system had great microdynamics, blacker background, etc. What do you get out of the same accolades over and over again? Is there such a desperate need to look like the other camp by using these technical sounding terms???
Let's remember that as objectivists we too highly value subjective opinions. This is why we conduct blind listening tests. But in no time do we ask listeners to tell us if there is "harmonic structure" there or not. If we are designing a loudspeaker, we want to know what to fix. Saying the harmonic structure was not there will lead to fix what exactly??? Tell me that you think the mid-range is depressed/low or that the sound seems bright and I can do something about that. Those are subjective terms that a graph may not tell me. And hence have lots of value to me. I don't know what the heck to do about lack of PRAT....