In reply to Diogenes.

I don't think that unwillingness to contribute back to the "official" effort sends that message at all. It's beneficial to all to have different and varying resources and awesome that the work of WP core documentation volunteers can reach even more folks through multiple resources that pull from it.

Contributing back to the official effort comes with all kinds of constraints and a larger number of people to work with as well - not everyone wants to engage in that. Sanford simply wanted to build something that he and others would like to use and to build it the way he wanted to build it, on his timeline.

Hookr is free - it's inaccurate to say that it was built at the expense of WP core volunteer effort - they were already contributing those docs regardless of who uses them or builds on them. If Sanford ever makes any money from it, it's because he decided to build a SaaS infrastructure for parsing docs or sell ads or whatever he wants. He's built a useful website with a nice way of displaying the docs included in some open source software. It's not a crime to do so or to make money from it.