Originally Posted by kael03
One massive ass run-on sentence that has numerous thoughts with no organization can be summed up as thus: You believe the women are all a manifestation of Senbonsakura? That would be wrong. For starters, Nimaiya said they were all zanpakuto, plural. They aren't a singular entity. They are just unbound zanpakuto (meaning their respective shinigami haven't been born/trained/discovered their sword's soul). Second, Byakuya's zanpakuto wasn't broken, it was stolen. Nimaiya can't fix what isn't broken.
As for how they know Renji and Ichigo's names. Simple, the Zero Squad know they are there, so the zanpakuto know.
His personality change has more to do with him becoming the head of the Kuchiki clan than it does with some wild ass (and wrong) theory about his hot-headedness turning into his sword. He grew up, had to become more responsible, and swore to follow the rules no matter what.
Its Royalty, a Family Code thing. Notice how Byak's Dad was, and additionally thats why he pursues Rukia his Sister, because most times she's marching to a drum different than expectations from the Families position. He was a lot more rigid prior to Ichigo arriving to the SS, and going Bankai. Ichigo has earned Byaks' respect/admiration, so though the Royal Code would be 'To Hell with the Ryoka, not from the SS', that respect/beholding warranted. Beyond that Byakuya is general a hardline, by the Shingami orders kinda Dude.