User blog comment:Godisme/A Piggy Party/@comment-5551986-20121220003541/@comment-5551986-20121221140026

But if the zanpakuto is used to purify hollows, then they couldnt have been purifying them more than 1000 years ago right? And they use the hilt of a zanpakuto on a plus. So what the devil could they have been using originally? Unless Kido and Hakuda can purify them, but Aizen said Yamamoto shattered Wonderwiess' soul using i think it was Sokotsu. I dunno if aizen meant that technique or Hakuda in general however. But you do have a point.