I really think it is a cool little feature. But I have a suggest and I know everyone is like Fuck this dumbass has to open his mouth lol but I think it would be pretty cool that you could "upgrade" how many credits you get for each amount of tokens by paying credits.
Example:
If I mine 100 tokens and I get 1 credit for it maybe for 500 credits I can get 1.5 credits for 100 tokens.