Sadly happens a lot. Maybe not as much with other products but with collectible cards its a big thing. Some people traded for and got a fake then they feel ripped so they pull that scam, some just order from china and turn a 3.00 investment into several hundred dollar card. I actually study fakes. I have relationships with all the biggest manufacturers of fakes and i get every print run well before they are released. I use usb microscopes, bend test, light test, ink test etc.
I can't imagine it would be too difficult to pull off on ebay, all someone would have to do is find a high end pen that they make fakes of.
Yep, and there are several high end pens that are often faked. It's one of those things that I would never have an interest in doing to actually think of it. As they say to catch a criminal you have to think like a criminal. I can see as a seller it would be very difficult to protect yourself from something like that, and incredibly costly to have it happen to you.