OFFTOPIC: avoid it at all cost. Energy, time, attention, focus = the most valuable resources out there. Valuable content will find you anyway.
I don't know how valuable content would find me if I didn't have a routine for looking for it. Am I doing something wrong?
Valuable content will be a very small minority of content.
What the parent means, is that you really need to know, will end up rising from the pile.
Take React as an example. A fine technology, which some might have known about them from 2015 or so, by reading HN every day etc.
But you really don't have too catch them that early -- nor is there that much of a benefit in doing so.
Even with cursory and rare glimpses on technology news sites, or conversations with colleagues, you'll end up learning about React at some point or another.
The "routine looking for valuable content" on the other hand, would just bring in tons of noise (short term fads that die off, useless fanboyism, etc).