I just streamed five consecutive losses.
Everyone watching thought I was playing in Silver. I'm Diamond. In the first game, our ADC decided it didn't want to play anymore and went AFK. In the remaining four games, my entire team played like they belonged in Silver.
I played very well in all five games, but these players were so horrendous that there was no way to help them. I would attempt to gank for them, and they would engage and die before I reached the lane. I would try to save them, and they would turn around and hopelessly attempt to kill the already fed enemy champions. They would watch the enemy team move through wards, ping them, and still get caught by them. Some of them would be really behind (0-4-0), and constantly push their lane to the enemy tower with no wards.
This isn't an acceptable level of play for anyone at Diamond. This can't just be blown off as a bad game, either; there are players like this in every single game.
Why isn't anything being done about this? Right now, individual contribution to the outcome of the game is being made non-existent by these players.