Ranked play and getting promoted
Honestly, it seems to be very improbable to easily win 5 or 6 games in a row, and then during your series, get trolled to death every time. Its almost as if you are matched with bad players during you series on purpose.
I have a solution I think is fair. Most of the anger that this game causes in people comes from lack of control. You are powerless---if you get a bad player on you team, you can't really do anything. And despite you playing very well, you still may lose the match and it was beyond your control. I think people don't appreciate, psychologically, what mind...fudge... that is. YOUR individual rank and score is based on how well you do, but also on how well 4 other people you don't know do.
SO, to help alleviated this issue, I think that when a player is in series, that player should be matched into a games where they get either 1st or 2nd pick, randomly. This way, at least they were able to bring their best to the match, even if the rest of their team is garbage.
Vote or die.