Not really sure where you got that from. He created the terms shikai and bankai. Seems that he named all the things that are part of the establishment of the SS, not that he literally named every single thing that is made in the SS. For example, Urahara named the hogyoku himself. He said he knows the names of all the zanpakuto. So I took that as meaning that when a Shinigami has spent enough time with their asauchi so that it changes into a real zanpakuto this guy will instinctively know what that is. Not that he named it for them, determining their abilities. And upon further examination of a zanpakuto...like in Renji's case, he can then tell the person the full name of it. The ability in itself still makes no god damn sense...unless it was Oetsu who had this ability...then it would make sense. I'm not giving Kubo a pass for this...it's faulty as fuck. That said I have ZERO issues with Renji's true ban kai...that shit is awesome. Kubo likes to do that, cover up faulty bullshit with an awesome development. I was talking about Yama.