Thread:SlyCooperFan1/@comment-3010996-20140929084700/@comment-1824272-20141002095551

A page will only force Source mode if there's advanced coding on the page. But I don't see any advanced codes on that page...

Bismo, don't worry about it, though. The visual editor is being deprecated soon, so you should learn Source coding or use the new VisualEditor (by clicking the arrow next to the word "Edit" on the page).