No SD on 19 , it was 17 , when Susannah C . was there too . I don ' t think BS has anything to do with it , tbh . <| sep |> If I was that drunk the hamburger would be the only thing that could save me <| sep |> Google ontario liberal scandals . I ' m liberal supporter but my God the list was unreal . <| sep |> consider the very same example that you wrote before 5 players . Player 4 previously 2500 stops playing for 3 seasons . Season rolls , his MMR drops to 2200 . Another season rolls and his MMR drops to 2100 or something . Another season rolls and his MMR drops further to 2050 . In the meantime , all the other 4 players keep playing but they do not improve one bit , so their MMR goes back to the stable values 500 , 1500 , 2000 , and 3500 . Player number 5 will never see Player 4 anymore if the matchmaker doesn ' t spread mmr too wide , hence MMR decaying is achieved at least from P 5 ' s and P 4 ' s point of view . While the other 3 players will see that P 4 has not played for a very long time , it would be the same with any decaying method some players would still be matched with P 4 no matter how low his MMR drops . Maybe , in a perfect world , players returning after a long hiatus would be playing a couple of warmup matches against other players in similar situations , but that would require a massive number of players .