Rubbercarp is the proprietor of that website.
If you take a look at my trade list, I would certainly be interested in picking up a few. PM me what you are looking for and I'd be interested. But why don't you keep it?
-wtk
P.S. You also have to keep in mind that 80% of those singles will never sell unless someone in a niche market wants to make a deck and happens to need
Orc Scimitar. When you "just need that one card," you would likely pay more for it than purchasing in a lot.
Good luck with your sale(S)!
-wtk