In reply to fwolf.

the so-called “Developer Handbook” is still rather worthless

Hi w0lf. I'm one of the Docs contributors.

I'd been keen for you to share your concerns about the handbook. With that and HelpHub replacing the Codex, it's important that any issues/concerns are addressed early.

The best way for anyone to get involved with documentation, even to feedback on things such as this, is via the Slack channel, which you can sign up for at make.wordpress.org/chat. You can be part of the on-going discussion and, if you want, get involved in the changes being made.