eBay seller: "goldnblack" - legit?

All,

I'm looking at a poster being sold by an ebay seller with the ID goldnblack.
The seller seems to deal primarily in signed posters:

http://cgi6.ebay.com/ws/eBayISAPI.dl...userid=goldnbl
ack&include=0&since=-1&sort=3&rows=50

I put in a low bid on one of the posters and asked the seller to take a digital
picture of the signatures, since the posters are all "too big to scan" (duh
much?). I never got so much as a peep in response.

All the auctions are private, and the seller's tone in responding to comments
(even positive ones) is pretty unpleasant; but I can deal with unpleasant, if
the items are legit.

Anyone have any experience with this seller?

thanks,

Un