likely never. I had written a script a while back to easily download youtube video transcripts. In the past, I've been able to use ChatGPT to debug the script and improve it. Now if I ask any questions about the script the response is "this goes against YT ToS and I can't help you"
Could you just massage the text and convince ChatGPT its from elsewhere?
Out of curiosity I tried a bunch of different ways to trick it with no luck.