You don’t measure an agent’s subjective probability like that, though—not least because in many cases it would be bad experimental methodology. Bets made which are intended to represent the subject’s probability at a particular moment should pay out—and not be totally ignored. Otherwise there may not be any motivation for the subject making the bet to give an answer that represents what they really think. If the subject knows that they won’t get paid on a particular bet, that can easily defeat the purpose of offering them a bet in the first place.
You don’t measure an agent’s subjective probability like that, though—not least because in many cases it would be bad experimental methodology. Bets made which are intended to represent the subject’s probability at a particular moment should pay out—and not be totally ignored. Otherwise there may not be any motivation for the subject making the bet to give an answer that represents what they really think. If the subject knows that they won’t get paid on a particular bet, that can easily defeat the purpose of offering them a bet in the first place.
This doesn’t make any sense to me. Or at least the sense it does make doesn’t sound like sufficient reason to reject the interpretation.