We dig into Auburn’s big idea: auction houses collaborating on a shared shill-bidder list to protect buyers and legit sellers. Chris explains how some marketplaces already purge unpaid sales from data, and why tougher KYC/AML-style identity checks could raise the bar. We also break down private sale transparency, when a headline price is really marketing spend, and how to contextualize comps so you don’t get wrecked by bad data.

Topics:

• Cross-auction shill blacklist & real penalties

• Fanatics sending unpaid-item removals; why more should do it

• KYC / AML-style identity verification for bidders—practical or pipe dream?

• Private sales: docs, names, paper trails, and fraud risk

• Comp literacy: float, intent, rarity, and why not all sales are equal

• PSA Offers, vault deals & what should count as a comp

Disclaimer: Nothing here is financial or legal advice. Verify policies with each marketplace.

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