ebayer janardana was the first to announce his auctions for Moron Salt were ended.
 
Here is what he had to say: 
 

I've had 2 Moron Salt auctions cancelled by Ebay due to the Morton 
Salt company! I have no idea how they found out that these cards were 
selling on Ebay, but they're trying to remove them from the market. I wrote 
to them by e-mail, but they wouldn't budge & this started a few months ago! 
Apparently selling the card infringes on their copyright, so Ebay had to end 
it early for them & asked that I not relist any in the future, otherwise my 
account could be suspended!!! I didn't know what else to do except mention 
that I have a copy in every Die-Cut listing I posted. Thanks for your 
concern.