True, but that doesn't mean the payments have to be fixed in bitcoin. There's absolutely nothing wrong in saying it's $1/3/5/10/30 per post in bitcoin, the payment is still in bitcoin after all. I think we can all agree that the current payment is quite ludicrous and can easily be avoided in future. If they still wanted to pay in a fixed bitcoin price they could still cap the total weekly amount you can get but paying in a fixed fiat amount would make more sense to me.
We still need years to get adopted with Bitcoin ecosystem. Take out $/fiat equation from the mind, it's easy. 1 BTC is 1 BTC. Imagine there are no fiat system, bitcoin is the currency. To buy a drink you are paying 0.000075 BTC, to buy a pack of cigarette you are paying 0.0003734 BTC, to buy a packet dinner you are paying 0.0009341 BTC.
I know it's not realistic now but maybe for Chipmixer - it's already a reality.
Why not embrace 1 BTC = 1 BTC?