I actually like this idea. Sometimes I just love to give surprises to my friends here, but it reduces my fun when they found out who sent it, by reading the alerts list. I would feel a lot more satisfied if they don't know the sender. It brings more excitement, thus the receiver will also feel the excitement, knowing that someone is care about them, what they want, and feel the atmosphere of sharing and helping each other here.
So, I agree about this idea but it needs to have a little payment, more like at least 20k per box, and the box should be sold in a shop, like perhaps the Toy Store. So the user can not always send items all the time he/she want, but needs to check on the box stocks in the shop and purchase it, depends on the availability of the box.
Plus, inside the box there should be a limit of maximum 5 items per box/per send. So no user would fill up their junk so much and send it to another user in purpose. If he wants to bomb others, he/she needs to pay a lot. That would reduce these "evildoers".
Sorry if this turns out to be a long writing. How about you, guys? Let share some more opinions.
Cheers. ;D