system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do browsers re-download an image when you click "save-as"?
gpt
Poor programming. Whatever browser you are using, the developers just found it easier to implement the feature that way. The big browser makers are competing with each other with more and more features, they aren't as much concerned with making sure the basic features work better, so minor stuff like this will go unfixed for a long time.