This "dynamic listing" also makes it impossible to quickly jump somewhere in the middle of the category. You always have to start scrolling from either the beginning or from the end. I wonder how slow the page will become once you've reached halfway through a category with a few hundred thousand photographs...
Oh well, that's how everyone else does it in these days so it must be the best way. At least on this website the photographs remain in the same order if you mis-click and have to start loading the category from scratch. In social media such as Facebook and Instagram, the "smart" algorithm will shuffle the posts every time you load the page, so if you accidentally click something, you can never return to the same "list".