An anonymous reader shares a report: Social media platform Reddit sued AI startup Perplexity in New York federal court on Wednesday, accusing it and three other companies of unlawfully scraping its data to train Perplexity’s AI-based search engine. Reddit said in the complaint that the data-scraping companies circumvented its data protection measures in order to steal data that Perplexity “desperately needs” to power its “answer engine” system.