Option 3) USD-stable centralized escrow: Instead of keeping the escrow in a free-floating currency, any deposits received in escrow are immediately exchanged for a USD-stable asset held by the marketplace administrator. Once the buyer receives the product and releases the escrow, the USD-stable asset is exchanged back into the free-floating cryptocurrency. The seller will receive, at the time of escrow release, the amount of free-floating currency equivalent to the seller's list price in USD. The seller then withdraws his anonymous, free-floating cryptocurrency. The transaction is totally untraceable and unlinkable. The seller never sees the USD-stable asset. He takes no volatility risk. He does absolutely 0 work.
erm.... centralized escrow. Is this an autonomous centralized escrow?
basically my qualm is introducing centralization and a required trust in a third party. I know this 3rd party trust is the basics of escrow, but those are my thoughts.