bbchem,
Everyone has their own take on things. Personally, my philosophy is a slightly different take than the one you describe, mine is " there is reality, then your perception of it". It takes into account the individual.
As far as tweeters are concerned, I also agree that too many speakers today seem to have an exaggerated top end. It is something that can be seductive, but ultimately, wears on our ears, hence the term fatigue. How could something detailed be fatiguing? Wouldn't it be the other way around?
The same holds true for low frequency as well, a lot of speakers are not quite right down low either.
Not all of it is speakers, a lot of popular music, contains a lot of emphasis that shouldn't be there, both high and low.
Richard, rajacat, I'm in the same camp with you as well on this one. Neutral might not have the same sex appeal, but I much prefer neutral.
Cheers