In case where a friend subscribes, the subscriber would know that they missed a shipment though and it would be tricky to justify that to them. I think I need t

In case where a friend subscribes, the subscriber would know that they missed a shipment though and it would be tricky to justify that to them. I think I need to just eat the cost and convince myself via some kind of analysis that it makes sense to pay. I didn't mention it in the blog, but giving Dropbox-style incentives to signing up your friends is something I am thinking of, so people being aware of what others are receiving would happen more in the future.