User blog comment:Godisme/The Gotei 13 repeat and reboot wrap up/@comment-44061-20120202055956/@comment-1837917-20120202062330

If I could make a point on Yamamoto's arm, it makes a fair bit of sense. He's the oldest Captain, and one of the strongest. He doesn't need his arm back to show how much authority he commands, and most likely it's a reminder that he fought Aizen and failed to stop him.