User-generated content is increasingly important in the ecommerce industry, with social commerce platforms offering personalized product discovery experiences. Marketplaces face unique challenges such as managing large catalogs and supplier relationships, while C2C marketplaces must balance between producing higher conversions for sellers and optimizing product discovery for buyers. To improve data hygiene, seller acquisition, and buyer behavior, C2C marketplaces can implement powerful ranking strategies, use AI capabilities to optimize monetization, and leverage personalized recommendations. Efficient catalog management, custom ranking, and advanced merchandising tools are also crucial for optimizing search and discovery on these platforms.