Go back and read the post again... slowly this time. See where he wrote : "Contracts not options. So one account would catch the move in the direction the other account - going to zero."Options straddles are as old a trading tactic as option contracts have been listed for trading
So this thread is not about options straddles, ok?
...OR you open FX long/short at the same relative price level. JC was describing the FX pairs tactic as a quasi-options position due to the "expiry" (account drain) aspect where max loss is capped while the other side of performance is unlimited.
Absolutely not, only Forex traders high on cocaine ("Wolf of Wall Street" style) would do such a stupid thing!

If the Euro is at 1.2500 and you expect a big move up or down, (let's say a 300 pip move one way or the other), then you could place a stop BUY order at 1.2575 and a stop SELL order at 1.2425, for example. The strong move would then trigger one of these 2 pending orders and hopefully reach your profit target sooner or later, if your analysis was correct.
But you do not open 2 opposite positions at the same price on the same currency pair, that's total nonsense!
In fact, Forex brokers love that kind of absurd positions, because they collect double spreads (and now consider you a total amateur...)