I’ve been wondering whether or not there should be separate fields for these two things. Alt text really is meant to be descriptive of the photo in ways that a simple caption isn’t, and I wonder if it’s mostly right now being treated as a caption?
Sorry for not responding to this sooner. You’re 100% correct about this, and when I next have the some.pics code open I’ll go ahead and start working on a setup that allows for alt text and captions as distinct data elements. I’ll also work out a way to encourage people to populate both fields with the ideal text for each. Thanks for pointing this out!