Don't worry about it, ignore him. He posts the same stuff year after year after year and clearly has never done any actual experimentation beyond the misguided theories he learned decades ago in school. 
Yea, I want to agree with Dave.
I don't want to offend Speedskater, but I've also noticed that he responds negatively to most cable topics.
Solely in the Cables don't matter camp.
In the 5-6 years I've been upgrading my system, I have come to the conclusion that Cables do make a difference.
Started out with Groneberg, from Klause. Then moved to Military spec Silver coated Copper, from Patrick at Cullencable (RCA/Power/Speaker). Then moved to some Zenwave from Dave (RCA/Speaker). Then moved to some TWL from Pete (Power) . Now Jason from Hapa audio has got my attention (USB/RCA) so far. Also have some stuff from P.I. audio (UberBuss/Ethernet).
All of which made a "Difference" to the way the music is presented. Couln't tell what spacific change each one made, my music memory is not that great, nor is my perception to each individual change in Trimbre.
Now I don't know why Speedskater can't tell a difference in his system..
Is it his system, room , or has he not tryed other "Better" cables , because of his belief that cables don't matter.??
Delta