Lose ELO when other players leave prematurely

  • I have had this issue for at least 5 games week, where, players leave the game early (automatic win for myself), and I am penalized by loosing ELO.

    I do not understand this, because in each instance, I am winning, and players instead of playing out the game, quit early. Somehow I loose ELO. Is this a bug or something, I've already lost a lot of ELO because of this error.