Note by @fastfinge

@sinmisterios @the5thColumnist @RachelThornSub Another thing you could do is just copy paste an explanation of your issue into the alt text. Odds are someone else will write it for you. Or a blind person who comes across the image will ask. Accessibility for people with disabilities shouldn't mean silencing the voices of other people with disabilities. You could also create an image-only account, that says write in the profile you can't write alt-text. That way people who don't ever want to have images we can't understand in our timelines could follow your main account, and ignore your image only account.