That's the plan - many referrals on reliable faucets. Then the only manual work left is withdrawing regularly from them. But it is a lot of work to build the base. As with everything in life :)
Of course, things change quickly in the world of faucets. One day reliable is tomorrow's vanished faucet. So it is a constant task of maintaining the network.
The good thing is - Bonus Bitcoin as an example - that I did the last promo post in March 2016 and new referrals are still coming in...