http://drkdirwovu6rhsghd3f3denws6szdijfic7loxrboxyli5pe6qcvvvad.onion/escrow-vs-multisig-explained
The platform holds the only key on the escrow funds for the duration of the order. The structural risk is obvious: if the platform exits, the in-escrow balance goes with it. 2-of-3 multisignature escrow distributes the funding contract across three keys: buyer, vendor, and platform.