Online platforms manage user-generated content effectively through a combination of moderation, community guidelines, and scalable technologies. They implement robust moderation systems that employ both algorithmic filtering and human oversight to ensure compliance with community standards. Additionally, user reporting mechanisms empower the community to flag inappropriate content. Platforms leverage machine learning algorithms to categorize and analyze content, optimizing engagement while adhering to regulatory requirements. By fostering a positive environment, these platforms can enhance user experience and retention while minimizing legal risks associated with harmful material.