These people have good intentions.
The problem is that they don't manage to go critical because there's to way for students to create content, everything is manually curated.
You can't even comment on the textbooks. Or at least Ciro Santilli hasn't found a way to do so.
This massive lost opportunity is even shown graphically at: https://cnx.org/about (archive) where there is a clear separation between:
Maybe this wasn't the case in their legacy website, https://legacy.cnx.org/content?legacy=true, but not sure, and they are retiring that now.
- "authors", who can create content
- "students", who can consume content
By Rice University.