User blog comment:SEOkitten/The Importance of Images/@comment-1038387-20151026190446

So, img012.jpg is obviously bad, but how bad would numbered image names be? Like James Bond Thunderball 0001 or James Bond 0001? Can you salvage that through captions and File: page descriptionss?

In any case, another argument to keep clean image naming, sourcing and crediting on your wiki. I loathe wikis that have tons of images with gibberish names and empty File: pages.