while the daily dividends are still quite insignificant, even if the user claims free boxes for a year or more.
It probably varies to how much you stake.
I can see the first page as an example, 30.000 BFGstaked which he got $48. 0.00087 BTC and 0.0059 ETH every month. Seem a good amount actually.
I have not really tried the BFG casino but because it seems the popularity keeps going, it's worth trying. I even tried its Betfury boxes getting 3 satoshis to bet for free.