The payout is very little, and it is decreasing, where will it arrive? 1 satoshi 
What do you expect,when the price of bitcoin raises the faucet will keep on decreasing and if everything sails smoothly it might arrive to one satoshi 
The 4% interest isn't worth it, even Bitfinex lending provide more than this and I trust bitfinex more than freebitco.in.
People seem to have forgotten about the 30% haircut they had to take when Bitfinex got hacked for like 130 million.
There are risk involved if you are trading in an unregulated market.Unlike Bitfinex we never keep more than 5% of the total coins in a hot wallet. The procedure we use for storing our coins is explained at https://freebitco.in/?op=home&tab=earn_btc.
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How do you store bitcoins securely?
We use a combination of hot wallets, hardware wallets (Trezor) and BIP38 encrypted paper wallets to store bitcoins. At no time do we keep more than 5% of our total bitcoins in the hot wallet which is used for making payouts. The hardware wallet is used as a "warm" wallet and bitcoins are transferred from it to the hot wallet as required. Our paper wallets serve as our "cold" storage with the wallets generated on an air-gapped computer running Tails OS. Our hardware and paper wallets are also secured against physical theft as the hardware wallet requires a pin code and encryption password to access and the private keys in the paper wallet are encrypted which means that the coins in the wallet cannot be accessed without having both the private key and the encryption password. We also keep physical copies of the cold storage wallets at multiple locations.
We use a combination of hot wallets, hardware wallets (Trezor) and BIP38 encrypted paper wallets to store bitcoins. At no time do we keep more than 5% of our total bitcoins in the hot wallet which is used for making payouts. The hardware wallet is used as a "warm" wallet and bitcoins are transferred from it to the hot wallet as required. Our paper wallets serve as our "cold" storage with the wallets generated on an air-gapped computer running Tails OS. Our hardware and paper wallets are also secured against physical theft as the hardware wallet requires a pin code and encryption password to access and the private keys in the paper wallet are encrypted which means that the coins in the wallet cannot be accessed without having both the private key and the encryption password. We also keep physical copies of the cold storage wallets at multiple locations.