Do Scammers Replate Copper Coins To Sell As Proofs? This Doesn't Look Right

I agree. Just a bad photo.

Bad photo, plus it is a brilliant proof which does not have the same look as a modern cameo frosted proof. In the era of brilliant proofs they often repolished the dies several times resulting in coins that have a "melted" or soft look to the devices.

Proof, horrible picture and that's his "stock image". He shows a small date proof and sends you a large date no doubt.

There have been some instances where a proof die was used for striking proof coins and then once retired was used to strike circulation coins but this was not standard practice. It happened much more often in the 19th century than in the 20th. There are several cases in the 1950's where it is claims some of the Franklin halves and Washington quarters were struck with retired proof rev dies. But I'm not sure if that is true or if they were simply business strikes that were struck using rev dies that were hubbed using a proof die rev hub. Kind of like the 1998 - 2000 WAM cent where the rev was hubbed using the proof hub, or the 1968 -70 enhanced flame rev on some of the business strike dimes where the die came from a proof hub.

In order to really say that a proof die was retired and then used for circulation coinage you need to find markers to a SPECIFIC die that appear on both proof coins and business strikes.

Here is good example of BRILLIANT PROOF coin. It is 1oz .950 pure gold so thankfully hard to fake but still had me doing a double-take because I had never seen a "BRILLIANT PROOF" in hand. This was issued by Taiwan and minted by Taiwan's Official State Mint

1981 TAIWAN China GOLD 2000 YUAN COIN
BUST OF SUN YAT SEN
70TH ANNIVERSARY OF THE REPUBLIC
BRILLIANT PROOF