User blog comment:Lia Schiffer/423: Farewell Swords/@comment-3041141-20101008035850/@comment-452405-20101008043531

He didn't use a forbidden kido on WW, he used it on Aizen, and he was then kind of trying to stop the man planning to be god and killing everyone else. When Tessai used it it was used (in the eyes of the Central 46) to further aid in a serious crime.