In the crypto world, many people think that exchanges are just "customer service + technology," but it's actually much more. A mature platform is more like a Web3 city: the front end handles matching and products, the back end manages risk control, compliance, and clearing, and the outer layers include BD, community, growth, and investment research. The token listing team focuses on the project's fundamentals, the liquidity team monitors market depth, the security team guards against hackers, and the compliance team oversees global regulations. What users see is the interface, but the real complexity lies behind the massive machinery. You might think placing an order is just pressing a button, but they have written over a dozen mechanisms, anti-cheating logic, and risk control models for that button. The more you understand about exchange roles, the better you can see the other side of this industry.