How is he controlling the multiple accounts issue?
I thought he got a very good system to give one claim per one PC for one hour. Even people change IP address they can't claim multiple times from the same PC.
If he allows multiple claiming from different IP address from the same PC then obviously people will abuse it. Then he needs a better system to avoid this abuse.
It's the same as a DDoS attack. It's a piece of malware that allows him to control thousands of computers. Rather than just attack sites and make them run slow he runs a script to claim from faucets.