plus here's the thing, that'd be an awesome action for tons of oss projects. Discourse gives away their forum to OSS people, github hosts gh-pages, make it trivial for OSS projects to make awesome docs by using discourse as a CMS for hugo.
As someone who’s written docs professionally (I was at AWS for four years) I can say that just maintaining some markdown files as a GH repo is far preferable to maintain than scraping a live forum.
Forums are for ephemeral and non-essential content