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

1. Because, under carefully controlled conditions, the measurements wouldn't consistently reveal significant differences ...

OR 

2.  ... even if measurements could reveal ~significant differences, it would be too hard to agree on and consistently repeat controlled testing conditions. I suspect the differences some people report, if real, are attributable to changes in length, gauge, or fiddling around with connections.  Or to small changes in speaker positions that occur in the process of changing cables.

Mr. B4icu it's not relevant what distance the wire and DF of amp without taking into account the impedance swing of the speakers. You keep on pushing battery cables and I'll stick to reality. 

I have a very good friend who actually sells real power distribution systems around the world (think electrical infrastructure for cities of 11 million and then some). If you guys continue with this wire expertise, I will have to call him in for help.

I have the same, and they do it for major corporations, major governments, major government facilities, all remaining nameless..etc..and their expertise is in transmission lines, and so on.

And they realize that this bears no discussion. That the audio and music fan questions about audio cables are very very real. That the complexity of the question and answer set in ’high end audio’ is very very real.

So, strike that one down, unless your buddy really has no idea what he is dealing with or talking about....then by all means..forge ahead!

Lol tk, small changes in speaker position when changing cables? My speakers don’t move at all as they’re not positioned on Teflon. Fiddling with connections? If you haven’t tightened the nut, shame on you. My speaker cables are all standard 8 ft, and yes, there are some differences in gauges in some cases. 

As the OP, I wanted to see if many were interested in how high-end cable measures, most here are not concerned with it and let their ears be the judge. I believe this is the way it should be.
We are in a hobby where everyone defines good differently, we have different equipment, and listening preferences so how would any set of measurements be meaningful.
For Mr. @b4icu or anyone else to come on and push a standard on how everyone should choose a speaker cable is absurd. I've seen people preferring 28 gauge magnet wires as speaker cables....so the thicker gauge cable that Mr. b4icu recommends will also have their supporter and some will find their sound appealing, but the majority will fall somewhere in between 0 and 28 gauge. My point is, there is no standard for this stuff, it's whatever sounds good to the listener.
For those who have NEVER heard a difference in speaker cables including Mr. @lostinseattle, run two 28awg insulated magnet wire to each speaker (one for positive, one for negative) and see if you can hear a difference compared to your existing cables, it's a very cheap experiment that will let you experience something you never have before. Let me know once you have tried it.