in fact this thread talked about "method of growing your bitcoin" not "how do you earn bitcoin" which is you investing your bitcoin and growing them,
Imho growing is same like collecting or increasing the amount of something like money, so typing faucet to earn bitcoin little by little is one of methods to grow bitcoin too, cmiiw.And about signature campaign yeah its a job if you didn't post anything you'll never paid its like earning from faucet but the different is signature campaign is high paying and faucet is not
Yeah, but a newbie cant join any signature campaign with higher payment rate, thats why there are many newbies saying faucet is a best method for them, atleast until their rank will be higher to join a sign campaign 
That's true, but I think they should buy some senior member accounts at good rate and then join signature campaign that would help them to earn more and faucets doesn't sounds great as it doesn't pay in higher amount, so for a newbie signature campaigns are the best option if they have senior member or hero member accounts than they can earn good bitcoins out of it.