Make a service that usurps eBay with crypto payments and an escrow service that signs the transaction after proof of KYc for scam sellers and a reserve fund to

Make a service that usurps eBay with crypto payments and an escrow service that signs the transaction after proof of KYc for scam sellers and a reserve fund to reimburse buyers for fraud, etc. I can think of so many better ways than the PayPal/eBay fund freezing Mafia