Circle Draws Backlash for Aave USDC Rate Hike Proposal

Circle is facing a wave of criticism after a proposal linked to its chief economist suggested sharply increasing USDC borrowing costs on Aave, as the lending pool grinds through a liquidity crunch that has dragged on since the KelpDAO exploit.

The plan has gone down badly with DeFi users, many of whom say it would make things worse for people already trapped in a broken market.

Proposal to Raise Aave USDC Rates

On April 22, Circle CEO Jeremy Allaire shared a forum post by Gordon Liao outlining adjustments to Aave v3 parameters to fix what he called a “non-clearing” market for USDC.

The pool has been stuck near full utilization for four days. Available liquidity sits below $3 million. Borrow rates have been flat at around 14% even as roughly $60 million drained out of the pool in a single day.

Liao’s fix centers on the “Slope 2” parameter, which controls how sharply borrowing rates climb at high utilization. He wants to raise it to as high as 50%, while also lowering the optimal utilization threshold.

His argument is that 14% simply is not high enough to pull fresh capital in, because many of the people currently borrowing do not particularly care what the rate is; they are trying to exit positions that the April 18 KelpDAO exploit left them stuck in, and they will pay almost whatever it costs to get out.

At full utilization, the parameters would push the maximum supply rate to around 48%. Liao compared the logic to how traditional money markets work: rates spike, capital arrives, rates come back down. He also stressed the post is his personal view, not an official Circle position.

However, after talking to some community members, the economist walked back parts of the proposal. He acknowledged in a follow-up comment on the Aave forum that liquidation thresholds were much lower than he had initially expected.

The exploit itself drained nearly $300 million from KelpDAO, with attackers using compromised rsETH as collateral on Aave to borrow large amounts of real assets, leaving behind bad debt and frozen positions across the protocol.

Community Pushback Is Swift

The response was not warm. Forum user Zeebradoom put it plainly: Liao was “proposing a 50% interest rate on a population that is in some cases physically unable to deleverage.”

Another commentator, JosueMpia, said Aave’s priority right now should be “rebuilding market confidence rather than aggressively forcing utilization normalization through extreme interest rate adjustments.” He warned of liquidation cascades and said he would vote against it.

On X, people were less measured. “You need to fire your chief economist,” wrote Avant Protocol CEO Rhett Shipp. Another user went further, arguing that Circle should have deposited USDC directly into the pool instead of drafting governance proposals.

YCC founder Duo Nine stripped it down to the basics:

The only one who gave Liao partial credit was pseudonymous analyst PaperImperium, who pointed out that while the diagnosis was not wrong, the prescription was off.

They also raised a harder question, asking if any serious lender would actually put money into the pool at elevated rates when nobody yet knows how much bad debt is sitting in the system.

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