when i submit my bitcoin address to many sites to get free satoshi
the site gives me a message that my satoshi was successfully added to my faucetbox account
how that can be ??
often over a number of days, so that they won't have to payout small amounts "dust" . This is good for both
them and you since "dust" transactions are problematic
Yes, it is almost impossible to get a direct payout to your wallet anymore. Even sites that claim to offer direct payment do so only after you have accumulated a minimal threshold, oftentimes higher than faucetbox's. Gone are the days where you could simply enter your bitcoin address and click submit (without captchas even) and receive your bitcoin in a matter of minutes.
But even with that siad, I used to play around with faucets more than I do now. Once you find more profitable ways of earning BTC you quickly learn what a waste of time faucets are, but I think they are still a great way for a beginner to learn about BTC. They can help you learn how to transfer your BTC to a wallet, maybe even trade on an exchange, gamble a little, etc. without having to invest money right away. Once you are familiar with the basics, you will be a bit more comfortable investing your own money into bitcoin.
One other thing I have noticed lately is that some sites are now even queuing up your payouts to faucetbox. Meaning you may need to meet a certain minimum on their faucet, say 5,000 or more satoshis before they will even let you cash-out to faucetbox, where you again would have to meet a threshold and wait for you payout. This double queue if a disturbing trend I think will only continue. I know one site HourlyBitcoin was recently hacked so users lost any finds int he payout queue.
In short, you can earn indeed free bitcoin using faucets, but expect to jump through many hoops and obstacles to do so.