User blog comment:Rupert Giles/Layout Changes: Breakpoints and Typography/@comment-126761-20150520121535/@comment-5558012-20150520213336

"Some are having issues, so let's make sure EVERYONE has those issues!"
 * Everyone doesn't have issues at this point. This is a wiki-by-wiki problem (outside bugs and font) if that wiki had a problem, it knowing or unknowing was ignoring it (so the wiki's problems were hidden behind a curtain until this update revealed them). If you formatted articles with a smaller screen in mind, you wouldn't have any problems (again outside those created by bugs and font) as the page would still look fine (as you are at a different content size). The point here is for you to update your layout (created, usually, for solely a large screen viewer) so no one sees problems.