Tether has emerged as a highly profitable entity in the stablecoin market, with a small team generating billions in profits. However, its success is tied to specific factors: a dominant market share, high interest rates, and a regulatory environment that allows for limited constraints. This context makes Tether's model difficult to replicate at scale. While it's profitable, it doesn't hold systemic importance in global finance. The article emphasizes that Tether's achievements shouldn't be seen as a blueprint for future stablecoin success. The author outlines three primary monetization models for stablecoins. The first, issuance, involves investing reserves in low-risk assets to generate passive income. While this model is currently effective, it faces challenges from cyclicality and increasing regulation, which could favor established financial institutions over new entrants. The second model, flow, aims to charge fees for each transaction. This approach is likely to fail because users expect low-cost or free transfers, making it unattractive and unsustainable. The third model, payment acceptance, charges fees for specific transactions, allowing for a more sustainable revenue stream. Payments create economic events where merchants pay interchange fees for access to users, decoupling revenue from interest rates and scaling with real economic activity. This model fosters organic liquidity as merchants and users engage with the stablecoin. However, building a payment acceptance business requires significant operational infrastructure and regulatory legitimacy, which poses its own challenges. Overall, the author suggests that while issuance has been key to the industry’s growth, payment acceptance may hold the most promise for long-term success.