Thread:MisterWoodhouse/@comment-36392072-20201217062524/@comment-1038387-20201217070327

It was definitely useful. It was, unfortunately, bad SEO. Google considers the tabs of category pages duplicates of the first page, and punishes a site if they have too many duplicates. If a wiki has big categories, that runs in the hundreds. The classic view has the same issue, but with 200 on one page instead of 16, it's not as big of an issue. Dynamic Categories was specifically created to counter this SEO problem.