@combatdre....I have never seen these in person so I have to ask if what you are pointing out is not just a sloppy error? Since a lot of these pins are hand painted there are differences between each pin, some horrendous ones sometimes lol. Everything else in the pictures you posted look too similar to scream fake to me.....total suck if they are that good.
Another thing is that although sellers relist or appear to have "multiples" of certain pins, I can attribute shilling to several of these and not fake pins. When sellers win their own pins they of course either offer a second chance option to bidders (I NEVER accept these on super rare pins because Im pretty they don't have two and they just bid me up) or they relist the pin in hopes of actually selling them.
I see a ton of suspect activity going on with your example pin right now. The seller keeps listing and what appears to be selling the exact same pins (yes 100% exact, check the pictures) over and over and over and over, and all of the auctions are private and that is a sure sign that they are hiding something because there is nothing to protect but shilling. That option used to protect buyers and sellers, identities used to fully seen without making them private and competitors could initiate contact with your buyers and try to sway them, bidding rivals would contact each other and make false claims in hopes of getting the others to back off and tons of other dirty things I'm sure. However since eBay began hiding identities for auctions AND feedback, the only thing being protected by doing this is the bidding activity. IMHO this should always be available to potential bidders because if there is nothing to hide, why hide it? I NEVER bid on private auctions because they are shady, if you are running a legitimate auction let the numbers prove it. 9 times out of 10 private sellers that run private auctions relist the same thing even though it appears to have been sold....I'm just sayin.