:holysheep: can you say.... PARANOID....
I sell and buy on ebay all the time. eBay sells items that are illegal in some countries and states. They're not too worried about what you do with your products, especially since they get a chunk of the money for listing fees, final value fees, paypal fees, etc.
I always wonder to myself... 'Why do people always insist on saying things without having any hard evidence to back up their claims...'
One would be safer to assume that when your seeds get confiscated, that they would keep track of that, or come get you for your attempts, but they don't. They send you a letter saying, sorry... try again.