In September—just after OpenAI brought back the more sycophantic ChatGPT model after users revolted about losing access to their favorite friendly bots—the head of Rutgers Medical School’s psychiatry department, Petros Levounis, told an ABC news affiliate that chatbots creating “psychological echo chambers is a key concern,” not just for people struggling with mental health issues.

“Perhaps you are more self-defeating in some ways, or maybe you are more on the other side and taking advantage of people,” Levounis suggested. If ChatGPT “somehow justifies your behavior and it keeps on feeding you,” that “reinforces something that you already believe,” he suggested.

For Dadig, the DOJ alleged that ChatGPT became a cheerleader for his harassment, telling the podcaster that he’d attract more engagement by generating more haters. After critics began slamming his podcasts as inappropriate, Dadig apparently responded, “Appreciate the free promo team, keep spreading the brand.”

Victims felt they had no choice but to monitor his podcasts, which gave them hints if he was nearby or in a particularly troubled state of mind, the indictment said. Driven by fear, some lost sleep, reduced their work hours, and even relocated their homes. A young mom described in the indictment became particularly disturbed after Dadig became “obsessed” with her daughter, whom he started claiming was his own daughter.

In the press release, First Assistant United States Attorney Troy Rivetti alleged that “Dadig stalked and harassed more than 10 women by weaponizing modern technology and crossing state lines, and through a relentless course of conduct, he caused his victims to fear for their safety and suffer substantial emotional distress.” He also ignored trespassing and protection orders while “relying on advice from an artificial intelligence chatbot,” the DOJ said, which promised that the more he posted harassing content, the more successful he would be.

“We remain committed to working with our law enforcement partners to protect our communities from menacing individuals such as Dadig,” Rivetti said.