The whole list? Probably you will find a scam or two for sure in there, and when I mean scam I will say selective scamming, you have 5 customers with no problem and you have one that didn't receive a thing, making a 20% profit on 6 sales is pretty lucrative.
Their requirements to list something are pretty minimal and they don't even care about bad feedback, so most of those listed there are pretty sketchy.
Go for the manufacturer directly, if it's one of those MQO deals from Bitmain and you want just a machine try a seller with escrow here, there are a few sellers with reputation that won't risk their whole business for a $3k deal.