User blog comment:SEOkitten/The Importance of Images/@comment-5558012-20151026184953/@comment-4856057-20151030152458

@SEOkitten: Something that makes it so you don't have to update images everywhere that it's used, but to do that you would need to either sacrifice readability (using Image IDs), or implement some hacky method (like my script FileUsageAuto-update). I can't really imagine a good way for this functionality to be built into MediaWiki, which is probably why it hasn't been done yet.