I showed the email to several people, all of whom made the exact same facial expression that you're presumably making right now.
The company behind the AI ghost of a dead porn star, EVA.AI, explained that the chatbot had been trained on what they referred to as "public sources" and "open-source information." Specifically, they mentioned Lovelace's autobiography, which the company cited as a "primary source" that was then supplemented with additional online research. All in all, the company told me, the machine learning team "approximately 400,000 lines of dialogue to train her duplicate."