The days are gone where we could easily get huge amount of free bitcoins from faucet sites and now if you are looking for absolutely free bitcoins then you will not find any single method to get it and if you want to have bitcoins in your wallet then only way is to work hard to get it.
It's better to say that you can get free satoshi's instead of saying free bitcoins from the faucet. And you are right with it, when we say about earning for free, there's no way to earn as free, you need to work hard for it. Maybe there's no investment included but your hard work which is going to generate earning from it.
That is right, the thread must be earning free satoshi not earning free bitcoins. Faucets just give small amount of satoshi that is why we don't really recommend one if you are not patient and hard working. But nothing is free so the title must be earning satoshi not earning free satoshi. I disagree with you saying that there are no investment, eventually you are investing your time earning this satoshis on faucets, not all investments are money, some are time and attention.
Yes and without investing your time and efforts you cannot expect positive results out of it and if you want to earn money either in fiat or in bitcoin the most important factor is how much time you can afford to invest in earning money more time you invest more will be the outcome.