User blog comment:DaNASCAT/Technical Update: October 21, 2015/@comment-1251315-20151021200442/@comment-1251315-20151023102454

@Kirkburn: Actually, it is semi-related. If you don't click the "This is not an infobox" link, the template gets syntax highlighting: clicking the link makes the editor plain text. My point towards the plain-text editor is that nearly everything is syntax highlighted in the source editor and there's no way to remove most of it, because personal JS doesn't work in the editor window (unless you use a dev script to add an extra button to make it load) and the setting currently doesn't cover any of the coding pages except mainspace.

The setting currently is the only reason I keep editing wiki's. If the plain-text editor was simply kept but had syntax highlighting everything, it would make me less likely to edit anything, because the colour codings are irritating and disruptive to how I edit.