Great Idea 
support this!
OP income model
There are two types of income: explicit income and MEV.
The Optimism Foundation runs a single centralized sequencer that is solely responsible for generating Layer 2 (L2) blocks and adding transactions to Ethereum’s Layer 1 (L1). The sorter fee consists of two parts, the L2 execution fee and the L1 data fee.
L2 execution fees are similar to Ethereum gas fees. The amount of fees to be paid depends on the complexity of the transaction, i.e. its computational and storage requirements. That’s about 1% of what users pay.
The L1 data fee is the cost of publishing a batch of transactions to Ethereum. The sorter uses a cost-plus approach, charging users a price higher than the L1 cost. It currently charges 1.24 times the sum of the gas required to submit a transaction and 2,100 gas. This generates surpluses that will be used to fund the growth of the ecosystem. It’s worth noting that 99% of the fees charged by Optimism are L1 data fees.
So far, these fees paid by users have brought in $24.5 million in revenue for Optimism.
link to this is here!