That's a shame, and you are not the first person that I have heard this from recently. He just kind of disappeared and deleted his accounts. The fact that he hasn't refunded any open orders is baffling.
I was burned on eBay when I saw a nemrod holster pop up for $145 and quickly purchased it. Been 2 years since, lesson learned. Avoid JimmyByron on eBay (looks like he’s scamming again with Jetpack harnesses).