I've had no problems with AC including the pre-
deputy years. Besides, from the deputy standpoint 
the don't have to care really what it ends at, 
you win, they get a commission. And last but not 
least the FAQ even mentions that you can't bid on 
YJP auictions from parties related to AC like the 
seller "thewindy" for ethical reasons. 

Anyhow, no harm done. And you still won your item 
even if it's a bit odd how it ended. congrats