There are many different ways to earn bitcoins, Starting from faucets and signature going through online methods in general.
Starting a faucet might be a beneficial way of making good amount of bitcoin in short time. But many people here never consider starting an own faucets.
Because most of the people here are focusing to earn with faucet not looking for starting a own faucet. It is just due to lack of knowledge about faucet and how to getting start with it.