Hey, some folks apparently have life-changing experiences upon first exposure to really expensive aftermarket wires for their headphones, speakers, interconnects, whatever. One can be assured that those folks will mention it early and often on forums like this one. To the point where newbies take it as universally accepted common knowledge that any piece of gear absolutely must be "upgraded" with hundreds of dollars worth of wire in some form or another.
It is important for the equally large number of folks who consider the whole thing hogwash to frequently chime in with their own totally subjective impressions. If for no other reason to reassure the occasional newbie who finds the "common knowledge" around here a bit dodgy-sounding.
I think the fact that nearly all of the most respected headphone manufacturers are constantly improving their cables shows that it does improve the sound. If it didn't they would keep using cheap materials because we would still by them anyway.
Anyways, unless you have tried and tested this it is pointless commenting. Arguing for arguing sake.