Ignorance of the nature of the content generated by Chat-GPT
ChatGPT does not cite its sources most of the time.
It rephrases, uses quotations and copies the authors' writing style without crediting them. This is considered plagiarism. This is the problem for authors, but also for researchers, teachers and students.
"GPT templates can unintentionally facilitate plagiarism by generating content that closely resembles existing works without proper attribution. This can lead to ethical and legal problems, particularly in academic, journalistic or creative contexts. (...) whether the intellectual property rights belong to the user, the creators of the model or a combination of both.
Finally, in some cases, GPT models can be trained on proprietary or confidential data, which can lead to the unauthorised use or disclosure of sensitive information.", "The Dark Side of the Moon" by ChatGPT, Alain Goudey, 16/03/2023.