I could see posthaven turning into an API that any site could integrate with so that users knew their data was safe. Depending on the site and type of user data, this type of exportability/backupability could be a real differentiating feature.
Normally scrapers can be detected and blocked, but if it's passively running in the background on a user's machine, opportunistically grabbing data the user is already viewing, it should be impossible to detect.
This needs to exist.