If you are asserting that Linus Pauling was the only two-time winner of the Nobel Prize, my doubt in the accuracy of your conclusions has only increased, given that Marie Curie, John Bardeen, and Frederick Sanger have all won two Nobel Prizes.
I'm starting to think the person you are responding to is trolling everyone here, unfortunately.
Unshared.
Pauling himself wold be the first to suggest that you don't take over 2g orally. He took vitamin C as injections to treat his Bright's disease.
Today he would reject orthomolecular medicine, because he was an intelligent man and believed evidence.
Pauling took 18g every day, for decades. It's in his book. There is little doubt Pauling would do the same today. He would reject LPI though (as apart from his name, they don't follow his footsteps), but not orthomolecular.