Starting from the beginning, I have (at least) read through every story and every article, every week, since 1998. Especially in the beginning, there was a lot in each article I didn't understand. I would try to do some digging into those topics.
One way or another, just the weekly exposure to absolutely top notch technical writing was foundational to me.
When newer folk would ask me how to really get good with Linux, I would always point them to LWN.net.
I've been a subscriber since the beginning. That small investment is the least I can do given the incalculable value LWN has brought to me.