Great, I'll provide instructions to users of my app on how to initiate this (IIRC) manual process that requires them to navigate a maze of FB privacy pages, con

Great, I'll provide instructions to users of my app on how to initiate this (IIRC) manual process that requires them to navigate a maze of FB privacy pages, confirm via email that yes, they do actually want their data, and then they can wait for the request to be processed by FB. Then they get emailed a zip file full of multiple files with everything they've ever done. Hardly the same as APIs that allow you to export the things you want, on-demand, in a documented format, seamlessly into alternative applications.