User blog comment:Silver-Haired Seireitou/Bleach Fanon Canon/@comment-3030647-20141110111154/@comment-18812574-20141110162735

It would be interesting if the guy who creates Asauchi dies:

1) Someone would have to take his place, creating "fake" asauchi

2) This would result in erratic and sometimes self-destructive powers emerging. Perhaps there is a severe caveat, ie, any damage inflicted on a released zanpakuto is incurred on the user as well. Or something along those lines.

3) Perhaps, in order to compensate, all the zanpakutos of dead officers are collected and "purged" of whatever powers/soul they once possessed, becoming empty vessels once again.

4) This could lead to a severe problem with a "black market" of blades, so to speak, with people murdering each other to get their hands on a "real" zanpakuto.