“Orange?! U R DUMB!!!!1!” – that’s what I don’t like. Not disagreement with the actual content of the article.
Mine's roughly that; the orange background is only a bit eye-straining for me.
For a lot of people with weaker sight, or outright visual disabilities that fall short of blindness, this would be entirely unreadable without Readability or similar tools.
Something that stops people from getting to content is noteworthy.
Other people thought it was worth talking about with regards to a blog post by a guy who makes a point of giving each post a unique, custom design.
The color choice also hasn't been the only thing criticized - the layout is cluttered and confuses some people. It's overall a much poorer design than many, if not all, of the other posts on that site.
This article boils down to "It isn't pretty enough, and I didn't write it." In other words: no actual relevant content. Just a lot of pretty images as text, BIG FONTS, and whining.