HIE- now ur talking….
Ur finally starting to address the eruv rather than who’s the biggest godol.
Ur right about the eruv being a big conflict. Everyones aware of the shailos there. But if some rabbis found a heter, then his followers may use this heter.
Again, hashem wants us to follow a rav, EVERY PSAK OF HIS, and not to pasken on our own.