All I am seeing is someone trying to sell something. If an item is tradeable there is nothing stopping you from selling it. It's your responsibility as a buyer to READ what you buy. People are greedy and they will always try to take advantage of others. Red Fox should delete event related items, resources and menu entries in Resource/Create menu as soon as that event is over.
Im just surprised he saved those coins for 2 years just to try and scam people. And i fell for it too