I also agree in terms of sending products to Audioquest. They really offer nothing in terms of consolation if they say that your cable isn't genuine. Many people would probably rather keep the cable to at least have something to show for their money instead of risking playing "Audioquest Roulette".
I once had a cable that I thought was genuine, but which a manufacturer (for reasons that I do not remember these many years later) thought had been "cut down" and reterminated in a way that would adversely affect SQ. The manufacturer did not have a formal authentication program (at least at that time) but they offered to look at the cable and return me an authentic one; either the one I sent or a new one if mine had been altered. They turned out to be right; I got a pair brand-new, most recent version cables back. I'm not gonna say the name; the president of the company personally got involved, was very gracious, and I wouldn't want them flooded with similar requests, 5-10 years later. They are smaller than AQ, but a very well known player in the cable game.
I agree that AQs program is really punitive and offers no incentive for anyone to use it. OTOH, they are in a no-win situation on this issue. The idea of S/Ns is appealing, but as I think about it more, it seems to me that if you can counterfeit the cable labeling and packaging effectively enough that a sophisticated consumer is fooled, why couldn't you just counterfeit the S/N?