This post is funny because the author uses ChatGPT to explain the joke in the title, which is that ChatGPT can't explain the jokes. But then, the comment written by ChatGPT itself tries to explain why the joke in the title is funny, but in doing so, it just further highlights the fact that it can't understand the jokes. It's a never-ending cycle of AI attempting to understand humor, but ultimately failing and adding to the joke itself.

The Guinness joke is really hard for the model. I tried a lot of variations, it just doesn't get it on its own. After revealing the correct answer it says

> The fact that the man claims to have quit drinking while still ordering and drinking two pints of Guinness adds to the humor of the joke by creating a sense of incongruity between his words and actions.

Still only 50% there, it thinks it was funny because the man suddenly quit drinking.