This is the newest announcement on their site:

For a long time they have been offering bitcoin faucet and some time ago new features were added like daily interest as you may already know. Do you think they are trusted enough to hold bitcoins on their website?
you can trust this website, bcuz they paid from 2013, and i got paid about 0.3 btc from this faucet and betting there, i invest 3 btc there few month ago and i got paid monthly about 0.01 btc
That still doesn't give you guarantee that they won't scam or anything, even the biggest and reputable websites did it in the past.
I personally only trust my coins to be in an offline wallet if not actively investing them