Because that is clearly not the norm for webpages? You're picking deliberate low-tech html pages. HN and memeorandum are not representative of the internet at large.
Honestly, man I don't care for this conversation. You do you bae. I was merely offering an observation of what I've seen from people and you're not even talking about that.
What does having 60% of my screen be purple do for me? Why would you choose that?