I believe your idea of adding use registrations is a very bad one.
~snipped
This is what I've been trying to explain from start.
This is the best idea I've ever heard of. I've never even heard of it before.
Registration Stop Bots, and bring full security to all faucets
The Greatest Ideas We've Ever Heard Thank you mexicantarget,
You are Really Hero and Saved the faucets 
Only Dead fish Swim with the stream, swimming against the river is hard but you are not never alone
I also support mexicantarget idea. Registering is that, what was missing in FaucetBox.
And this is not true that someone was using FaucetBox without knowing about that.
When i was using faucets, I always care to don't use faucets with own wallet (because of many scams) and i was choosing faucets with good micropayment system.
I'm sure that many users will also care about security of their hard clicked satoshi and they will choose FaucetHub.. Actually i have no doubt!