Peter Chao was unique, I don't see the comparison.
As far as shill bidding goes, who here is willing to take a stand and not bid with houses or ebay sellers we suspect are guilty, when they have a card we want? And if we are not willing to do that, why rant and rave?
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My avatar is a sketch by my son who is an art school graduate. Some of his sketches and paintings are at
https://www.jamesspaethartwork.com/
He is available to do custom drawings in graphite, charcoal and other media. He also sells some of his works as note cards/greeting cards on Etsy under JamesSpaethArt.