The overwhelming majority of these points are useful, and the exact thing that "engineering culture" Twitter has been excelling at for a while now. It wasn't always easy to find people supporting people at every stage of their career, but there are several accounts to follow to do just that.
The "one page ahead in the manual" quote is a great example of this. It's hard to remember when you didn't know everything you know today -- so think about yesterday, or last week, some smaller time slice. What did you learn yesterday that somebody on your team may not know? Operating at that layer and sharing knowledge freely shows you're a friendly resource and shows that you're honest about your journey. It attracts other people who are slightly above or below that level, who can share and multiply what you're learning.
(And it has a great byproduct of teaching you where the egos sit at your company.)
The "one page ahead in the manual" quote is a great example of this. It's hard to remember when you didn't know everything you know today -- so think about yesterday, or last week, some smaller time slice. What did you learn yesterday that somebody on your team may not know? Operating at that layer and sharing knowledge freely shows you're a friendly resource and shows that you're honest about your journey. It attracts other people who are slightly above or below that level, who can share and multiply what you're learning.
(And it has a great byproduct of teaching you where the egos sit at your company.)