is it really worth the try. i'm curious about it and want to try it on freebitco.in. I also found a script online.
I just don't understand why people are developing a lot of scripts and wasting a lot of time coding to exploit a FAUCET. Yes, freebitco.in is ofcourse a faucet. And the answer to your question - Martingale will always give you loss unless and until you have infinite money to lose. And surely you don't have that because that is the reason you are visiting a faucet.
It won't always give you a loss. In fact, I won big the first two times I used it, but that was just luck. If you carry on using it you will lose. As with all gambling it's knowing when to quit whilst you're ahead.