Eb,
I brought up the same question a little while 
back.  It's okay to ask for a character ID on a YJ 
cel---they just want to avoid questions about how 
YJ works, help with auctions, etc.

In my case, I posted a link to the auction.  I 
don't see why there would be a problem with 
directly posting the cel image here, but that's 
just me.  IMHO, as long as you post a link to the 
auction as well, the seller should consider it 
free advertising!  ^_^

JP