glightly
Abled people: the primary function of the alt text field is not to act as a little joke for other sighted people. It's not a fucking easter egg despite that having been normalized by XKCD.
You can certainly have a sense of humor in the alt text field just as you do the text text field, BUT after you've actually provided equitable alt text & img description. Transcribe the fucking text that sighted people are given in the image and describe any other relevant non-text parts of the img.
glightly
There's a pretty good guide to the difference between alt text & image description, and how to do it well here: https://americananthro.org/accessibility/image-descriptions/ #Accessibility
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