The burgeoning landscape of Layer 2 (L2) blockchain networks is prompting critical discussions among developers and strategists regarding sustainable economic models. A recent tweet from "clay" highlighted a core dilemma: "if 3rd party app(s) performance on the chain eats original app's moat / revenue (and is not offset by sequencer fees)...what is the incentive to support the chain?" This question underscores the complex balance between fostering an open ecosystem and ensuring the financial viability of the underlying infrastructure.
Base, Coinbase's Layer 2 solution, exemplifies this evolving model. Built on Optimism's open-source OP Stack, Base aims to scale Ethereum by offering significantly lower transaction fees and faster processing times while maintaining EVM compatibility. Unlike many L2s, Base does not have its own native token, instead utilizing Ethereum's Ether (ETH) for gas fees, aligning its economic activity directly with the broader Ethereum ecosystem.
Central to the L2 revenue model are sequencer fees. Sequencers are responsible for ordering and batching transactions before they are submitted to the Layer 1 blockchain (Ethereum, in Base's case). These fees, paid by users for transactions, represent a primary revenue stream for L2 operators. For instance, Base contributes a portion of its sequencer profit —specifically, 15% of its sequencer profit—back to the Optimism Collective, which governs the Superchain. This revenue-sharing mechanism is designed to fund public goods and incentivize the collective growth of interconnected chains.
The concern raised by "clay" directly addresses the potential for third-party applications to overshadow or absorb revenue that might otherwise accrue to a chain's original applications. However, within the Superchain vision, the success of any application or chain is intended to benefit the entire network. Through shared sequencer revenue and collaborative development, the growth driven by third-party applications, even if they create new "moats," contributes to the overall health and sustainability of the underlying L2 and its broader ecosystem. This collective approach aims to offset direct revenue impacts on individual applications by fostering a larger, more vibrant on-chain economy.
While the current L2 landscape often features centralized sequencers, leading to discussions around single points of failure or potential censorship, platforms like Base and Optimism are committed to progressive decentralization. The economic incentives derived from sequencer fees are crucial for maintaining and developing these scaling solutions, ensuring they remain attractive and viable platforms for a wide array of decentralized applications and users. This strategic monetization and revenue-sharing are key to the long-term sustainability and expansion of the L2 ecosystem.