You must not have had any experience in the real world, the winner of the
bogus survey would not be yelling, it would be the loser.

And by your standards, if the loser yelled you would dismiss it as "unproven"
without a direct admission from Powers or the winner.

No manufacturer
has ever accused JD Powers of using biased surveys.

Manufacturer. Key word. No manufacturer has dared to publicly accuse JD Powers
of accepting suggestions regarding the nature and content of the questions.
(Which is all I ever said was done)

All we have is a
disgruntled used car salesman with an opinion.

And an anonymous handle long ago out of ammunition and reduced to throwing
turds.