As soon as you have bought the popcorn/ diamonds no one cares who is going to consume them as a movie snack. So you always will be allowed to share your popcorn/ diamonds with your peers without legal repercussions, which is my point.

You are not wrong with the things you said. But I talked about virtual and real goods and the attached exploitation rules. And you talked about marketing and supply/ demand rules. And I fail to get the connection between those.

Is it (the lack of) morality and opportunism on the supplier's side? Help?