I'm not updated anymore on BFG mining but the last time I check on the website was it was already over and you can only earn BFG tokens by playing on the casino as rakeback rewards or stake on exchange using certain tokens to earn BFG tokens.
I think you didn't see the word
by betting. They never open mining like bitcoin mining. They introduce the mining with betting on the casino games. And still you can mine.
They are working and hope they will give a good news soon and BFG will boom soon. Let's wait.