Thanks! For now, I added a warning under the gist. Not that this is an excuse, but I put this together in about 30 minutes using GPT-4 for fun without much consideration about robustness or security. I will maybe try to rewrite it when I find time.
I honestly did not know spoonerisms were a speech impediment. In fact, I only learnt of them recently when I discovered Nacker Hews[1] here on HN, and thought it was quite humorous. I am sorry to have hurt you in any way. I should definitely research more next time.