Dev why there is no total or maximum supply ? And why you wrote Total Coins: 50,000,000 ? Is this your coin or someone make it for you ?
The absolute maximum amount of coins that can ever come out of POW is 50,000,000. In reality this number will be lower due to POS blocks. But yes, since LUNA have a POS coin with yearly interest, there is technically no maximum supply. Interest will keep accruing forever, or else the network would not function.