Board Thread:New Features/@comment-29302405-20170920020152/@comment-1117661-20170920174052

Flipping the switch simply creates a cookie with 2 weeks expiry time. All you need is to modify it. Run in console or add to Special:MyPage/global.js and you're set until 2100.
 * Urgent note: personal only. Adding to wiki's JS would be a ToU vio.