I will keep that in mind if we ever play poker. But the phrase remains a common idiom. And in an internet discussion like this, the rationale that makes it ba

I will keep that in mind if we ever play poker. But the phrase remains a common idiom. And in an internet discussion like this, the rationale that makes it bad form in poker does not apply. I cannot see anyone's reactions until after my action is complete and I hit "reply". And therefore I cannot gain a read and final decision based on my incomplete first stage of the action.