I'm firmly in favour of this. A lot of my journey with Racket has ended up being me looking for the blog post that helps me understand how to use form x in the language. In a bunch of cases, I documented my own learning so I can recall what happened later.
It probably also hints at why Learning racket/scheme - how do you get to the practicing stage? is such a monster thread. That those tips ease the journey from "this looks like what I wanted but am I doing it right?" to "I remember seeing that neat snippet... Yes that's good to know".