there is 1 guy in your team that dies 9 times within 13 minutes and the game is fucked, or that guy is in the other team. regardless, he is always in ranked in every match.
fuck matchmakings like these. put those guys back in lower mmrs for fucks sake.
Don't forget the trolls.
There's no doubt that you have also had a game like that. You might get a feeder every game, but it might have been that persons first time feeding in over 100 games. Everyone has bad games, everyone makes mistakes, everyone has been the cause of a loss, and everyone has been called bad. You're not bad just because you had a bad game, are you? Same applies to any players you get that play bad. Sure some might consistently play bad due to lag, lack of caring, etc, but most are just having a bad game.
Just relax and try to do your best every game.
