I got there, but I would still love to hear about easier paths.
- Use Discourse admin to download a backup of the site.
- Find the PostgreSQL database dump inside the backup file, then restore that to a local database.
select id from topics, then paste that into a file.- Use
sedor any of its cousins to turn the topic IDs intohttps://my-discourse-site/raw/<topic ID> for...; do wget $url; done