Credit where due, it is just my best guess. I have no evidence.
I simply think if you have custom code on a machine to ingest data, creating a federation interface may be more suitable and stable in the long run than a scraper. The extra server load may draw attention or run amuck with security policies designed to obscure scrapers.
But that is certainly an option.
Sounds like a great idea, but a significant portion of 1-star reviews point out massive data collection issues.
More information necessary before I install this on my system.