Last year Valve started to heavily crack down on the amount of CS:GO gambling sites and now aiming to crack down on gambling sites for another one of their games, Team Fortress 2.
Valve’s full statement is down below..
“In July of last year we outlined our position on gambling web sites, specifically noting that Valve has no business relationship with these sites. At that time we also began blocking many CSGO gambling accounts. You can view the original post here.
“More recently, some gambling web sites started leveraging TF2 items. Today we began the process of blocking TF2 gambling accounts as well. We recommend you don’t trade with these sites.”