According to OpenAI you're not even allowed to use GPT output to train a competing model, so they believe that AI models are the only thing worthy of protection from being trained on. Llama used to have a similar clause, which was partially walked back to "you must credit us if you train on Llama output" in later versions, but that's still a double standard since they don't credit anything that Llama was trained on. For obvious reasons now we know that Zuck personally greenlit feeding it pirated books.