yes, I think it can just be a rough conversion done on the front end
it can even display your native currency and update daily or hourly etc
basically right now our rewards are high and we should advertise this so more people are inclined to join to take part here
more users = higher steem price in the long term
I agree. Why limit to US $ when we could make the option to select the currency that you use (assuming the number can be pulled from an exchange).