BK8 has different rules depending on users region, what @ryzaadit said is true for the Indonesia region.
If you are registered under International region, here's the policy:



If you rank up to diamond, you can withdraw $100,000/day, so yes it's more than 5BTC with the current rate. However, as @Bitinity said, withdrawal BTC is currently suspended. Not sure when they will resume the BTC withdrawal. Support said they are still working to update the payment system, but no ETA is given.