There could be a business to be made in capturing and disseminating tribal knowledge for organizations. Even orgs with the best documentation don't have a great mechanism to capture and make available tribal knowledge which is un-authoritative, sometimes conflicting, and constantly changing.

In the past I made an effort to address this by creating a unofficial but quickly searchable document repository documenting every question I have gotten from a teammate by either answering it or pointing to where the authoritative answer could be found.

What I found was the following:

1. Questions are repetitive, you can quickly build a base of tribal knowledge and point people to the answer. 2. If the document tool is quick and efficient, team members will generally check it first instead of asking. 3. Sometimes document tribal knowledge conflicts with someone else's tribal knowledge. This is a great opportunity to hash out the more correct answer and update the document. 4. Tribal knowledge gets stale fast and needs constant curating. 5. The less friction to find an answer, eg fast access and fast/accurate searching, greatly increases success.

NB. GPT is a perfect front end for such an effort.