In this case the seller was a gold seller with 4 years trading, but the account was hacked and an unrelated
product was added to their products. The hacker was logged into the account and communicating with potential
buyers.
Sorry but I really don't buy that. Scammers will do anything to decoy you and point you in the wrong direction. I've been scammed on Ebay ~15 years ago on the purchase on a laptop, it's all the same red flags all over the place.
If something looks to good to be true, it usually is. A D3 will make a multitude of the seller's offer, no way he will let go of the miner for that price -> scam sign 1.
I feel your pain, you've just had an expensive learning lesson...
This is the thing we should put up on our minds on which we should always think or think twice if something is offered or sell in too good to be true prices then you should not bother to make transaction with unless if the discounted price or lesser price isnt too far on the usual market price because on that one maybe its still legit but for those prices which to way cheap than on its usual or normal price then we should really think twice.