Liquidation

A normal safety mechanism

Collateralized lending needs a way to close positions before their backing falls below the debt. Liquidation sells collateral, repays the system, and assigns a penalty. Under ordinary conditions the process is predictable. Its apparent objectivity comes from a sequence of prices, ratios, transactions, and auctions that can be specified in advance.

Black Thursday

During the market crash of 12 March 2020, Ethereum congestion and soaring gas costs prevented many participants from bidding normally in Maker auctions. Some collateral was won with zero-dollar bids. The contracts did not stop following their rules; the environment made access to those rules radically unequal at the critical moment.

Repairs name different victims

Governance changed auction design, parameters, and safeguards, and the protocol covered a system deficit through its own mechanisms. A separate question concerned vault owners whose collateral disappeared. Technical solvency, protocol loss, individual loss, and later compensation were different accounts. Repairing one did not automatically repair the others.

Procedure needs an access condition

A fair auction is not fair merely because the code treats submitted bids identically. People must be able to submit, pay for inclusion, understand the emergency, and compete before time closes. The lesson is broader than Maker: when a rule assumes access, failure of access is part of the rule’s outcome, not noise outside it.