It's a give fact that most of us trade Alts to increase our Bitcoin Hodlings. Having said that, I'd like to know if anyone follows a strategy to increase their fiat balance by trading it against Bitcoin.
In my country and the city were I am living, trading bitcoin and fiat on localbitcoin is a common thing just that it is capital intensive compared to bitcoin and altcoins trading. Following what you said I suspect those my country traders are making decent profit in fiat for trading.