mw13: Yes. Yes he does.
Kozov: It is precisely because he was accepted that we have to listen to him. It’s kind of circular when you think about it, but not quite. He was recognized as the undisputed Posek Hador, and therefore we were Meshabed ourselves (yes, even those of us who weren’t born until after he passed away) to every P’sak of his. Cases where he was ignored are tough to deal with, though it should be noted that people were Noheg to use Shabbos clocks before everyone started listening to him (and before he Assered them), which is probably an important factor.