@imtheq Alt texts are useful not only to visually impaired, but to those who browse Fedi using TUI (text only) software, myself included. I like alt texts and I do my best for all images I post to have them, but I don't think that descriptions you can spend 30 seconds on are fun to read for visually impaired.
I'll be okay with something like "two cute cats chilling on a heated rug" — I know it's a cute cat picture and if I'm in the mood for that, I can run an external viewer…