these things seems waste of time for me. instead of hoping to won some coins from this system airdrop is better.

LOL you compare a faucet with airdrop? Both are two different things dude, the only same thing between them is that you can get it for free. But if it is about the amount you get, both are not comparable. Faucet give you guaranteed amount, while airdrop? Speaking about wasting time, it is subjective issue.
I think what he is trying to compare is their lottery portion and not their faucet, because obviously faucets are not meant to earn in the first place. And I want to disagree with you as being one of the jackpot winners in the lottery can really be a life changing event for any people. Since the price increase of BTC lottery tickets drop from 12 satoshies down to 1 satoshi per ticket and I am not encouraging people to buy tickets as they are other ways to earn tickets freely, of of the most effective ways is through referrals as every time they claim will also give you a ticket in the lottery.