Golden Finance reported that Vitalik Buterin clarified on X regarding the Ethereum Foundation's sale of ETH: "The foundation is paying researchers and developers responsible for the following matters: 1. Ethereum will not spend 5 million ETH annually on proof of work; 2. User fees are currently very low; 3. Transactions can be completed in 30 seconds instead of 1-30 minutes (EIP 1559)."