Why high-end cable manufacturers don't post measurements?

Mr. ieales

To many words to say nothing!
Ok. 
" It depends on the system. Some systems will confound the most skilled listeners. Some systems are relatively immune to cable effects. Other combinations are like flipping a switch."

Which systems do sound different and which don't?
Why is that? What parameter of the system make the difference?
The truth is that you don't know.
I DO.

For the other guy, who claim that a cable length is a measurement, or it's gauge. Would you buy a car with that kind of information?

"For the other guy, who claim that a cable length is a measurement, or it’s gauge."

Huh, I do not like the idea of being "the other guy", but here I am. However you take it, length is a measurement and gauge should be, too. How pertinent are they is up to the individual user, but measurements they are. I would not mind knowing how long the car would be, if bought.

If I remember your identical although way more visited thread from some time ago, you consider gauge as the most important cable measurement. After using the formula based on DF, it all comes down that we need cables with gauge 0.

Why high-end cable manufacturers don't post measurements?

Sure they do....my cables are clearly marked on the manufacture's packaging.  My interconnect clearly state 1.0m and my speaker cables are 2.5m.  You gotta look closer.

Sure they do....my cables are clearly marked on the manufacture's packaging. My interconnect clearly state 1.0m and my speaker cables are 2.5m. You gotta look closer.
 

LOL! Hmmm....I never noticed until now :)

@b4icu

Which systems do sound different and which don’t?

All systems sound different. Room, component tolerances and age, humidity, temperature, pressure, YOU all conspire to alter the sound.

Why is that?

Do the math.

What parameter of the system make the difference?

Everything.
"Some of my work involved tuning the power supply. It may come as a surprise to learn that you can change tonality without even touching the signal path, because the signal originates from the power supply. The impedance curve of the N11’s power supply is absolutely homogenous from DC to 200kHz, which creates a very balanced sound. I also tuned the resistors for the voltage gain, using a mix of carbon and metal resistors to create a neutral balance. There are a lot of preamps that claim to be ’neutral’ or ’in balance,’ but there are different shades of ’neutral.’ If you have a tube preamp, for example, ’neutral’ is at a different level than solid-state; it’s not better or worse, but it is different. It took a lot of work to find the tonal balance I like a lot that measures well, with low noise, and fits very well in the Noble Line." [emphasis added] from https://www.stereophile.com/content/mbl-noble-line-n11-line-preamplifier

The truth is that you don’t know.

I don’t think you read what I or Mr Galeis wrote. If you did, it’s beyond your ken.

I DO.

Methinks not.