The fact that there are fake vinyls out there is very disturbing. I am so sorry for those that were scammed, and I hope that they received refunds or their traded vinyls returned. I certainly hope that the individual is not bold enough to put the fakes that were returned to him back into circulation.
I was scammed in a similar way back in the mid 90's with Ty Beanie Babies. There was one in particular that was very old that I wanted very badly. I purchased it from a seller on Ebay with 100% feedback, and a lot of it. When I received the item, everything looked fine, but it didn't feel like the same knap in the fur. There was an actual service that authenticated Beanie Babies. I sent it in, and was informed that it was indeed a fake. I contacted the seller, told him it was a fake, and asked for a refund and to return the item. It was in the old days of eBay when you sent money orders through mail to sellers. I never received a return reply, so I left negative feedback and kept the fake. A few weeks later, I was looking for a "real" beanie, and the same seller had of the same fakes for sale. I contacted eBay, but nothing was done. This ruined the trade for me, and my beanies are in plastic tubs in my basement.
I do want to collect P1's and U1's, but I will be pulling the heads off to look for the embossed numbers. Eventually, these people that make the fakes, and have no conscious, will come up with ways to emboss the numbers in the head, stems, and so forth.
Believe me, I have my first P1 arriving sometime this week...a Creepy Wallpaper, and it will be headless for a few seconds while I look for the embossed number!