Base processes over 10 million transactions daily, with average user fees at just $0.01. If these transactions were executed on the Ethereum mainnet, burned ETH fees would exceed $200 million. What's the cost? Transaction value has been redirected – a leading platform retains sequencer revenue, while the mainnet's fee economics have been hollowed out. Arbitrum and Optimism are replicating this model as well. This is the L2 scaling paradox: they do reduce user costs, but they reshape the entire ecosystem's value flow. L2s were supposed to be Ethereum's scaling solution, yet they've become a channel that diverts the mainnet's economic value. This issue deserves serious consideration from the Web3 community.