That it's possible ME holds one thing, where as R Belsky Held differently hence the differnt psak.
Without ME being inherently wrong. If you ask two people you will often get to answers. I'm not sticking up for ME or putting down @clown. I just think every case is different and you can never judge someone by hearing one side.
Of course, that's almost certainly the case. But I think what the poster was trying to get across was that in his experience, R' Epstein came down hard on him out of nowhere, despite the fact that they seemed to have come to an agreement.
Beis din, and rabbonim in general, are not supposed to be on anyone's 'side'. They should be looking to resolve the situation in accordance with halacha as they understand it. Yet often in these cases it seems everyone has a 'side', and the halacha part is molded to fit that 'side'.