Interesting. Short term, it would be neat to autogenerate documentation for your open source projects this way. Longer term, it would be neat to not even have documentation, just a bot that people can ask question to and get appropriate responses.
I have a version of this which I ran against the Datasette documentation - actually more than that: I ran it against the database which powers search on https://datasette.io/ which includes blog entries and release notes too - this data here: https://datasette.io/dogsheep-index/search_index?_sort_desc=timestamp
The results were promising - I need to productionize it.