PANews reported on April 20th that monetsupply.eth, Spark's Head of Strategy, stated on the X platform that Spark abandoned rsETH (along with other low-utilization assets) in January and has been continuously tightening collateral and feature sets. Spark set a high maximum borrowing rate for the SparkLend ETH market, while Aave lowered the maximum ETH borrowing rate to below 10%, causing users to switch to borrowing from Aave, resulting in Spark losing significant business and revenue over the past year. However, SparkLend currently maintains ample ETH withdrawal liquidity, while Aave's WETH reserves on the mainnet, Arbitrum, Plasma, Mantle, and Base are frozen. Spark pointed out that ETH is a core collateral asset, and insufficient liquidity not only inconveniences depositors but also prevents ETH collateral liquidation when utilization reaches 100%, posing a serious security risk. Given the current liquidity shortage on Aave, a 15-20% drop in ETH price could lead to a large accumulation of bad debts.