Valve has cracked down on Dota 2 smurfs—skilled players creating new accounts to play against less-experienced players—by introducing a new way of calculating matchmaking rating, or MMR.
Last month, the studio announced changes to matchmaking, including a new detection system to find accounts that were performing far above their MMR level. Since then, Valve has been verifying the system works, and now it's ready to take action.
"We feel ready to activate the rank adjustment portion of the changes," the developer said in a Reddit post yesterday. "The system searches for players that frequently perform significantly above their current skill bracket, and applies an MMR increase to those players until they've reached a skill bracket where they're no longer over-performing."