User blog comment:Kirkburn/Technical Update: October 26, 2015/@comment-8865495-20151027223835/@comment-8865495-20151028215840

I dunno if this has already been mentioned, but extremely long lines of wikitext on one line does not have line breaks, so it has a really long scroll. As for relevance in highlighting, with portable infobox styled highlighting, (though it's minor in the example below) more complicated templates would take longer to find all the elements if most code is greyed out.

http://imgur.com/5OSV7e4