The tutorials were always very pragmatic to what I wanted to do as a web developer, and were written in a thorough but simple style that fit my needs perfectly. For example setting up a basic load balancer with Nginx, setting up and hardening a basic Postgres configuration, multi-master database replication, etc.
It was very clear that the people writing the tutorials actually used what they taught in production environments.
This is a stark contrast to "modern" documentation for Google Cloud or similar services where the people writing the documentation didn't actually have to backup what they were teaching with actual experience (because at their company they used proprietary technologies that involved copying and pasting from other proprietary technologies).
Of course they weren't all perfect but I put it up there as some of the better documentation I've ever worked with (perhaps made possible in the 1-off format where their scope was relatively limited and not trying to upsell an auxiliary service).
It was very clear that the people writing the tutorials actually used what they taught in production environments.
This is a stark contrast to "modern" documentation for Google Cloud or similar services where the people writing the documentation didn't actually have to backup what they were teaching with actual experience (because at their company they used proprietary technologies that involved copying and pasting from other proprietary technologies).
Of course they weren't all perfect but I put it up there as some of the better documentation I've ever worked with (perhaps made possible in the 1-off format where their scope was relatively limited and not trying to upsell an auxiliary service).