I can't believe they got a journal article out of this. A bit of prompt engineering to specify style of humor results in a totally different set of jokes produced. Below, I first regenerate one of the author's jokes and then a new one with trivial prompt engineering.
Tell me a joke
ChatGPT
Sure, here's a classic one for you:
Why don't scientists trust atoms?
Because they make up everything!
User
Tell me a joke, but act like a 13 year old boy
ChatGPT
Alright, brace yourself for some good ol' 13-year-old boy humor:
Why don't skeletons fight each other?
Because they don't have the guts, dude! They're all bone and no backbone, ya know? insert goofy laughter
This is interesteing. I wonder if it is because those are very common jokes that appear over and over on the internet. Or if it is because chatgpt chooses them as preference.
Also I think it was trained to avoid anything sexual or offensive to any kind of group (racism, sexism, homophobia...) and when the remove that the jokes pool shrinks considerably.