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

Where's TESTPILOT when you need him?
-Answer to OP question- "Because they didn't have a tape measure".

@ SCAR972 Maybe they don’t post measurements,because cables,are not a componet.But a transfer function (just a hunch)

Why the interest in measurements?
OP please tell us all how YOU measure SQ.

All these wanna be engineers of truth, justice and the American way. Their purpose is to save you from yourself and reveal the audio deep state that's conspiring to steal your money. 

Enough of the crackpots already.

All the best,
Nonoise

It is only partially true. Most of the manufacturers I have seen do post measurements. Of the length. Some, rare ones I think, do even post gauge. That would be about it, but is hard to catch them saying "never post measurements".