For me the main problem of SO isn't even the moderation or human interaction. Even if a question is answered successfully, the entries have a short shelf life because modern APIs move and break so quickly. For example, I tried learning Ansible only through books and SO, and it was just frustrating. ansible_sudo_pass was deprecated for ansible_become_pass, but there are still many books and SO questions that still reference ansible_sudo_pass.
In the Good Old Days (or my rose-tinted memories of them), Java/C books and answers will always work even if it's not idiomatic, and JS/Python material might break once in a decade over a major migration like Python 2 to 3. Now I look at Ansible or Zig, copy a simple toy program from SO or GH, and just find that it doesn't work, because `sudo` became `become` and `fs` became `io`. There is simply no way for books or SO to keep up.
Java and C are older languages which have either solidified (C) or are very careful about breaking compat (Java). Most languages nowadays are indeed in the "move fast and break things" mode.
In the Good Old Days (or my rose-tinted memories of them), Java/C books and answers will always work even if it's not idiomatic, and JS/Python material might break once in a decade over a major migration like Python 2 to 3. Now I look at Ansible or Zig, copy a simple toy program from SO or GH, and just find that it doesn't work, because `sudo` became `become` and `fs` became `io`. There is simply no way for books or SO to keep up.