Vitalik Buterin denounces ‘fake’ DeFi and backs ETH-based Algo Stablecoins

Buterin criticized modern DeFi as centralized in disguise, arguing that USDC yield farming lacks core principles.

Ethereum co-founder Vitalik Buterin has questioned the legitimacy of popular USDC return strategies, arguing that they do not follow the principles of true decentralized finance (DeFi).

His criticism was in response to crypto analyst C-node, who said most modern DeFi focuses on speculative profits rather than building truly decentralized infrastructure.

Criticism of modern DeFi

C node challenged the crypto industry on social media, saying there is little reason to use DeFi unless users have long cryptocurrency holdings and need financial services while maintaining self-control.

Buterin supported this perspective, arguing that depositing stablecoins like USDC into lending protocols like Aave does not count as true DeFi. He dismissed such strategies, saying: “inb4 ‘muh USDC yield’, that’s not DeFi.”

According to him, the underlying asset remains under Circle’s control, meaning the scheme is fundamentally centralized even if the protocol itself is decentralized.

The Ethereum developer suggested two frameworks for evaluating what should qualify as real DeFi. The first, which he described as “easy mode,” focuses on ETH-backed algorithmic stablecoins. In this model, users can shift counterparty risk to market makers through collateralized debt positions (CDPs), which lock assets to mint stablecoins.

He explained that even if 99% of liquidity is covered by CDP holders holding negative algorithmic dollars while holding positive dollars elsewhere, the ability to offload counterparty risk to a market maker remains an important feature.

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The second, or “hard mode,” framework enables real-world asset (RWA) support, but only under strict conditions. Buterin said an algorithmic stablecoin backed by RWAs can still qualify as DeFi if it is sufficiently overcollateralized and diversified to survive the failure of a single supporting asset.

Under this structure, the overcollateralization ratio must be greater than the maximum share of an individual asset, keeping the system solvent even if one component collapses. This means it would act as a buffer that distributes risk rather than concentrating it within centralized entities.

“I feel like this kind of thing is what we should be focusing on more,” Buterin said, adding that the long-term goal should be to move away from the dollar as a unit of account, toward a more diversified index.

Response from the Crypto Community

The comments were widely shared within the X crypto community, with one user commenting calling it is a “great choice” and it is noted that ETH-backed algorithmic stablecoins offer real risk reduction, while RWA diversification spreads rather than eliminates these risks. Another noted that “True DeFi needs real risk innovation, not just USDC parking.”

However, there were also some concerns. For example, They added that RWA backing requires careful diversification, warning that highly correlated assets or black swan events could still cause a stablecoin to fail.