You'll still be paying tax just not for any capital gains you make in the future which may be irrelevant as that big loss may be enough for some to walk away and never have the opportunity to use that carried forward loss.
Of course for anyone that gets rich someone else has lost big coin but that's the way the world works with everything. As long as the punter weighs up their risk appetite and the amount they can afford to lose or potentially sit on until the good times come round again.
