My interpretation of the article was to stress the "publish or perish" mentality of writing. Your notes are serving no one any good, put the work in to publish something or else it's probably not actually worth much.
You'd be surprised. I publish a lot of notes to internal wikis, with the thinking that, hey, maybe someone will find this useful.
I get to see page views. The pages I'm really proud of nobody reads. The pages with the most page views are boring stuff (related to process, navigating my company's org structure, etc.).
More broadly, I've noticed that the things you do which have massive impact aren't always what you'd think. I once wrote a VBScript (long enough ago, it predated powershell) for a friend of mine to just run a program if there was no already running process by that name. He worked at an engineering firm, where for some inane reason some engineering software was always exiting and requiring a long init time to restart. The script kept it more or less always ready when you needed it.
Years later, I'd forgotten about it when he mentioned that it was a massive productivity boost. Every engineer at his company who had seen it in action, wanted it for themselves. Dozens of engineers were saving hours of productivity every week because of a throw-away script. Madness.
