Because this site runs on a very manual publishing process without any CMS or modern smarts to speak of, a lot of the content authoring and formatting is done manually as well. Code highlighting via the Prism highlighter is one of those manual tasks that is just more painful than others, but I have made it a bit less painful by using a little tool that I wrote a while ago called the Prism Amigo:
Yeah, I didn’t mean to imply that they were early CI badges; just that people had a tendency to run their stuff through a validator every once and a while. But we have different forms of validation today, so I don’t mean to sound dismissive of current techniques. It’s just kinda funny where we’ve landed.