@tack215
Ah, good point. I had thought that 'former number 0' meant he was number 0 until he died, but your conclusion makes more sense. So Makuro was #8 before he lost/died to Mitowa.
Makes me anticipate who #0 is. To be honest, neither Makuro nor Mitowa seemed like very interesting referees so far.
@Rooster
We (our TLer) added the notes. It's been six years since the scans of those chapters (~c60), so it's fair to say that most readers forgot about these details by now
.