Avoiding GIGO (Garbage In, Garbage Out).

This is why we have computer-variants of Library Science and Archeology, Forensic Science and a bunch of other advanced knowledge (not AI, mind you).

I don't see how this applies as its aggregating a bunch of stuff from random crawlers - if you want to crawl a list of actual domains that's generally considered the list of things that could resolve, so seems like a good starting place.