Hold up. To the best of our knowledge, ChatGPT isn't trained on the behavior of HR departments - or really, it isn't trained on a whole lot of real-world behavioral data at all. It's trained on books, Wikipedia, Reddit, and so on.

Even if your assertion that "hiring departments are well known for discriminating" is true, the ChatGPT bias is independent of that and is coming from casual human behavior on social media, not corporate malevolence.