User blog comment:Rupert Giles/Layout Changes: Breakpoints and Typography/@comment-4470100-20150524224658/@comment-4189499-20150526105010

To expand, so many people were designing layouts for large screens and not thinking about how this would affect the large population of users who didn't own a humongous desktop. This lead to pages looking like crap on smaller screens such as laptops and tablets. By forcing everyone to see a similar page layout, Wikia has ensured that people's page designs will look better on all devices into the future. Also, it's so much easier to not have to design pages for such a large range of widths.