One thing that I've seen that's a problem with this kind of thing (whether given out by humans or faucets), is
what people can do once they get the coins. You're probably not giving them enough to buy anything with them, so what do they do? Just hold them?
If I gave you 0.01 Serbian Dinar, what would you do with it? Maybe look at it, and say that it's cool.
What do people get out of faucets? Just publicity?
