Amounts less than 0.0001 BTC are generally not financially practical to send as the transaction fee is usually also around 0.0001 BTC. So, when you claim Bitcoins from SatoshiFaucet, they are sent to your wallet on faucetbox.com
. Once you reach the payout threshold, they are sent to your address. This way, you can collect Bitcoins from SatoshiFaucet more efficiently without having to worry about fees.