Hello.
I just thought of this server idea, where you can trade add-ons with other users. So this is how it goes.
A user can make his/her own shop in the server, and place item bricks inside it. The item brick will have the event that shows any text. (The item brick will have the name of the add-on) Then, the players in the server can go around shops/vendors and browse through the item bricks of the merchant. The merchant and the consumer can make deals. If people do not have any add-on they want, they can hang out in the lounge.
What do you guys think about this server idea?