You need to get your account to at least JR member in order to earn from campaign on the forum. But JR member pay rate in signature campaign is not that much either.
I am waiting to become a junior member. I know that the pay rate is quite low, but right now I don't have any other way of earning Bitcoins.
It is always some start, and im very glad that you decided not to use any kinds of faucet sites, but to make the bitcoins on your own.
I think that a good option for you might be just to join the signature campaining as soon as you will reach the junior member rank. I have to say that the payment for it is really low, but still hundred times better than any faucets.
Dont rush yourself in gaining the activity needed for higher ranks, take your time and educate as much as you can, it will surely help you a lot.
I also recommend you stacking the bitcoins earned on signature campaining when you go through higher ranks, because the payments are really small, but once you accumulate all the profits, the reward will be quite big.