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

I’d like to get your take on why high-end manufacturers don’t post measurements? would you like to see how a cable measure before ....does it matter to you?

The above is impressively full of various grammar errors for just 2 sentences.
The first sentence is not a question, sorry. You can’t just throw in a question mark whenever the feeling hits you. 
The second sentence needs to start with a capital letter, like you did with the first sentence for example. Also, the word “measure” actually needs to be in plural form, which means put an s on the end.

And then we have the meaning of the second sentence. What you may have been aiming for versus what came out, so to speak. Before what, bro? Before I die? Before Trump is ousted from office? The 3 dot thing can’t cover for you on this one.

And then we have, “Does it matter to you”. Sigh. Yes it does, OBVIOUSLY!

In Electronics, sometimes the analysis ignore a part, to simplify the circuit and better understand. The same with the next level: System.
With that approach, there are 3 elements in that loop:
Amp (output stage),
Speaker cables (two),
Speaker.

As long as you look into that as a whole loop, the cables become insignificunt. Mostly conductors do not become a part of such analysis, unless its high current or very long (res. value).

Well, in that loop the speaker cables do matter. If replaced, they sound different. As so, the described analysis do not apply.

My way to analyze the circuit, if looking into the Amps output circuitry, through the speaker cables. In such way, the speakers can be ignored.
it is not that they do not exist.
With that approach, you may replace speakers: 8 ohms, 2 ohms, any type, the cables that fit the Amp's DF will be good for all speakers.
If the Amp is replaced, and the new Amps has different DF, it need to be calculated again.
If the DF gets smaller, the same cabe will be good (even not all of its thickness is required). If DF gets higher, the cable shall be replaced to a thicker cable, as calculations recommends.
 

Rubbish

"In an audio system, the damping factor gives the ratio of the rated impedance of the loudspeaker to the source impedance. Only the resistive part of the loudspeaker impedance is used. The amplifier output impedance is also assumed to be totally resistive." https://en.wikipedia.org/wiki/Damping_factor

Neither the amplifier nor the speaker have constant A/C impedance

Mr. ieales

You claim that the Audio industry and Audio Testing (Audio Precision) as well as Wikipedia, are all Rubbish.
You know better?

For the sake of this endless argument, what is your explanation to the difference in sound with different speaker cables?
Do you have one?

It is easy to criticize. But what is your theory? What do you have to bring to this discussion table?
Except that you disagree with the entire Audio Industry, testein and  Wikipedia ?

For the sake of this endless argument, what is your explanation to the difference in sound with different speaker cables?
Do you have one?

http://www.ielogical.com/Audio/CableSnakeOil.php