It is kind of mentioned in the article but I think a lot of developers don't realise that there isn't just good code and bad code, there is a whole spectrum and the position on this spectrum is dictated by skill, experience, time pressure, money pressure and shifting requirements (assuming you ever had any!). We pine for the perfect green field where all things are good but there are probably zero companies where all…
A comment explaining "why?" A quick refactor of your patch to make it easier to understand. A small README update. Those kind of little things add up and pay dividends.
Best write code with empathy for those that come after you -- including your future self.