Many people just won't put any conscious thought into trying to get better on their own, though some of them will read or watch one thing on the topic. I will readily admit to picking up several useful tips from watching other people use these tools and from discussing them with peers. That's improvement that I don't think I achieve by solely using the tools on my own.
It may seem simple, but in my experience even brilliant developers can miss or misinterpret unstructured requirements, through no fault of their own.
And documenting the current state of this space as well. It's easy to have tried doing something a year ago and think they're still bad.
I also usually prefer researching some area before reinventing the wheel by trial/failure myself. I appreciate when people share what they've discovered with their own their time, as I don't always have all the time in the world to explore it as I would if I were still a teen.