I echo the other responses to your question. Just recently I had two instances where an old blog post of mine contained a solution to a problem a coworker encountered. I publish these notes mostly so that I don't forget about them, but it's an added degree of satisfaction when it proves helpful to others. I wrote a bit about this in one of my recent posts [1]. Don't be afraid of the rabbit holes!
[1] https://branislavjenco.github.io/rabbit-holes/