I often brag on tumblr about how "on the fediverse I never have to ask people for image descriptions, why is tumblr so terrible at this?" etc.
But, I've made the mistake of re-sharing a few images without descriptions recently! I was lulled into thinking it was not a problem.
Just FYI I'm going to get strict again about not re-sharing undescribed images. (You should too, it keeps the feed readable.)
If you forget? If this is new? Don't feel bad, just stop doing that.