It was NEVER my intent to throw a grenade in. And I do visit Audiogon occasionally ... mainly looking to buy. I normally do NOT go to the forums. And I am not laughing.
I read equipment reviews - as I'm sure most on here do - and the reviews usually have photos that show the "innards" of the equipment - and from the photos, the wiring inside amps and speakers looks pretty ordinary and routine [certainly nothing special].
If you have cheap or routine wiring coming off, say a transistor collector to an amplifier binding post INSIDE THE AMPLIFIER, and if this [because it is cheap wire] degrades or chokes the signal, kills any soundstage or imaging or clarity or whatever, and THEN you add very "good wiring" from the exterior amp binding post to the speaker binding post, how can the "good wiring" improve desirable characteristics at that point BECAUSE the cheap wiring INSIDE THE AMPLIFIER has already "damaged or degraded" the signal, and I don't understand or see how "good wiring" from that point forward can "recover or fix" the signal - a signal that has already been compromised by the use of cheap wiring. I don't believe "good wiring" can fix or improve any signal. But instead, it may make readily apparent the shortcomings of a poor signal. That was the point I was trying to make.
I agree in all likelihood #10 speaker wire will sound better than #18 speaker wire - for a host of demonstrable engineering explanations. But I don't think ANY speaker wire can fix or improve a signal that been compromised by the use of inferior wire upstream of the signal. And from the equipment review photos I look at, MOST of this wiring inside equipment seems to be pretty routine.