This year's 3·15 evening gala exposed the "poisoning" black industry chain of AI large models. Criminals use SEO optimization tools to batch-generate fake soft articles and forge review information, feeding toxic data into large models, manipulating AI recommendation results, making fictional counterfeit goods and products without proper licensing become "standard answers," forming a complete gray industry of paid submissions and malicious smearing, seriously misleading consumers and disrupting the AI information ecosystem.