You should read the patent on the cable which is useless. The cable box is a filter for RF, not audio signals.
I'd rather see a DBT compariosn to be sure of differences.

And how do you know the particular model cable he was listening to employed that particular patent?

Irrelevant, especially as I make no claims for audibility of anything. It is you who has to demonstrate audibility, YES. You cannot pass the burden of proof. It will remain in your court until you stop making claims for differences unsupported by credible evidence.

You make such claims almost daily with the unqualified advice you give here to newcomers. It would be one thing if you simply pointed out to them the lack of proof. But you go beyond that and for all intents and purposes make absolute claims that cables don't make a difference.

I for one believe it to be highly irresponsible for you to set your self up as an authority and pontificate on audible differences in the form and manner that you do without revealing who you are, what your background is and what kind of system you have.

Your dodge is wearing thin. It works if all you did is refer to the test results (of course, it would be nice if you were honest about it while doing it and point out the flaws in the protocol and statistical analysis and disclose your own level of expertise in evaluating such matters), but when you choose to play with the big boys and start giving unqualified advice about audibility of cables then you have crossed the line where the unwritten (and I believe extremely fair) code says if you're going to spout off about such things you had better let people know your own personal point of reference.