3 года назад
Today, Valve substituted Prime with a new matchmaking based on the new Trust Factor.
Note that during this first test period all players can choose to queue using the old system.
It considers different factors that influenced your account over time, such as the amount of time invested playing CS:GO, the time spent playing other games on Steam, the reports received for griefing, cheating, etc.
In short, people that act properly should be matched together, while the others will find teammates that are as toxic as them.