Popa, Dayanim don’t have ruach hakodesh.
Of course not. But they do need to be reasonable. I once asked a certain clown who is involved in geirus what rate of recidivism he would accept before concluding that his standards were obviously off. As a baseline, I asked if a 10% rate was too high.
He responded that he agreed that if 1 in 10 were going off, there was obviously something wrong with his system and that geirus should be curtailed sharply. But then he said, that if so, there would be no more geirus because even the B”Datz doesn’t have a 90% success rate.
Well, I agree with him on the first part, and agree with him on the second part. And therefore think geirus should be sharply curtailed. Maybe 1 in a thousand should be accepted.