Wu said that Spark's strategic director, monetsupply.eth, stated that Spark had delisted rsETH and other low-usage assets in January, and has been continuously tightening the collateral scope and feature set. This is also the reason why SparkLend's ETH market maintains relatively high maximum interest rates, even though this decision is not popular among ETH cycle loan users and may have caused significant business and revenue loss to Aave. However, under the current circumstances, this proves that the approach is cautious and correct. SparkLend still has sufficient ETH withdrawal liquidity, while Aave's markets across multiple networks are already experiencing liquidity shortages.