Could this be solved with an EULA and some language that non-human readers will be billed at $1 per page? Make all users agree to it. They either pay up or they are breaching contract.
Is this viable?
Most of my scraper traffic came from China and Brazil. How am I going to enforce that?
> Is this viable?
no
for many reasons
Say you have identified a non-human reader, you have a (probably fake) user agent and an IP address. How do you imagine you'll extract a dollar from that?