User blog comment:Brandon Rhea/Wiki Modernization Stage Two: Page and Article Headers/@comment-28082950-20170317031941/@comment-1824272-20170317032248


 * Categories should not go at the top of the page. This prioritizes the categories over everything else, which is a really bizarre design choice.

That's just a test to see if it actually leads to more user interaction with categories. If it doesn't change anything, they'll likely remove that category listing at the top.