The seller has a positive feedback of exactly 1. All other feedback is as a buyer.
His one selling deal was 1 oz gold bars (which could be sold anywhere instantly for at least $1000) for $800 - he sold 4. That closed a month ago and only one of the buyers (who bought 2 of them) left positive feedback. This is one enormous, 4-star red flag. Build up around 100 good feedback as a buyer, wait 90 days so none of the bought items can be viewed (in order to know if they are super-cheap things), then start selling pricey stuff at crazy low prices... and deliver nothing.
I am puzzled why none of the other 1 oz gold bars he offered in the last month at the same $800 did not sell.
When someone with good feedback got all of it as a buyer, and suddenly becomes a seller but only selling high-priced items that are clearly far below real value, something is fishy.