cherrybim: You are still avoiding my point. I made my position VERY clear that I very much respect Rav Belsky for what he is, ONE OF the Gedolei Haposkim but not the only one.
Cherry and charlie: You have a peculiar perception of the process of Halacha. Halacha is NOT regional! A worm is either assur or muttar, as a swordfish is either a dag tamei or tahor, neither can be kosher some places but not others. Would you say that anisakis is assur in EY, Manhattan, Queens and NJ (Rav Forscheimer does not permit their consumption, mi’safek) but kosher in Brooklyn. What IS regional is minhagim, but here there is clearly NO pre-existing minhag. BTW today swordfish is universally accepted to be non-kosher and I don’t believe any Posek would allow an Italian Yid to eat them based on the supposed tradition you mention. Additionally eating OU does NOT automatically make Rav Belsky ones personal Rav any more then it obligates one to say Hallel on Yom Ha’Atzmaut as Rav Schachter and Rav Genack do.
I do concede that if Rav Belsky is your personal Rav and you follow all of his psakim l’chumra and l’kula you MAY rely on him for this too. But otherwise I think it would be irresponsible to be lenient at the time being.