I think we might need to look a bit at Cory Doctorow. He is the author of both Ready Player One and Little Brother.
As far as I know, the phrase we found in the qr-code leading to Again.7z has yet to be used. Can someone please verify this?
Edit: "that phrase" being: "Never underestimate the determination of a kid who is time-rich and cash-poor."
Arg and I were slightly ahead the other day and spent 10 hours pouring over that book and its contents. It's possible we missed something, so maybe fresh eyes will help. Plus the book is terrible