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

That's because for some unfathomable reason so many audiophiles insist on talking about specs and design and marketing malarkey, pretty much everything except for the only thing that matters, which is how they sound. All anyone has to do to find exceptionally good cables is focus on listener impressions. The Synergistic CTS and Atmosphere wire in my system is truly remarkable, and well worth the money. Worth as much as the speakers, at least based on their improving the sound quality just as much. If people aren't having this experience with cables, or threads about cables, its only because they're doing it all wrong.

Mr. douglas_schroeder

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It's more because certain individuals post all over the place shilling one brand, and one brand only, rather than keeping an open mind on a number of highly recommendable manufacturers.

I don't know that I have ever seen a cable thread on this site that has actually benefitted audiophiles in making superior audio systems.

Ditto equipment reviewers.

That is a poor question because some manufacturers do state some measurements.

What measurements are you looking for ? The trouble is no set of measurements directly tells the consumer how well the cable will sound. Especially since there are thousands of different audio systems in the world today.

If you are looking for certain measurements, you can ask the manufacturer, or have them done yourself. Beware, they are not always cheap and easy to do !