ETHGas has introduced 'The Great Gas Reckoning,' a campaign that rewards users with 'Beans' for their historical gas fees. Participants can create a 'Gas ID' to track their on-chain gas spending and earn Bonus Beans based on their expenditure. Users can also complete tasks like sharing on social media to increase their rewards. By linking multiple wallets, users can enhance their 'Gassy' levels, unlocking up to 4,000 Bonus Beans to support the 'Gasless Future' ecosystem.