According to the survey, "7 Siblings" accumulated 596,800 ETH through the Spark protocol, becoming the platform's largest single depositor. Using this ETH as collateral, they lent out $193 million in stablecoins and purchased 49,287 ETH during the market downturn. However, the subsequent decline in Ethereum's price led to an unrealized loss of $27 million on their investment, highlighting the high leverage risks and vulnerability of large holders in DeFi.