https://thenextweb.com/gaming/2018/06/21/valve-disables-item-trading-for-dutch-players-following-lootbox-controversy/

Valve has disabled trading for Dutch CS:GO and Dota 2 players, thanks to a lawsuit from gambling authorities and a controversy a year in the making.

The context: The Netherlands was one of multiple countries to investigate lootboxes in the last year. In case you don’t remember, the whole thing began when Warner Bros crowbarred lootboxes into its single-player game Middle Earth: Shadow of War last year. It reached a fever pitch when Star Wars: Battlefront II debuted its frankly insulting lootbox system (and were torn apart for it by an exasperated audience), which is about the time gambling authorities started to sit up and take notice.