You can now climb easily by maining support.
I saw this post on the boards about how people hate the autofill function and I have to agree with one thing.
Maining support now means you can climb elo without being good, but just better than the random support the enemy team gets every once in a while. It's almost as if being a support is being mocked, because well everyone can do it right? Wrong! With Janna being in the Top 5 winrate and Sona somewhere near her it's safe to asume that autofilling support players most the time puts teams in a very big disadvantage. Que times smoo times, I used to wait for about 4 to 7 minutes in plat 4 for a game I did not pick support now it's around 3 to 4 minutes. So I had to sacrifice about 3 minutes to get a decent game, now I have to sacrifice at least 20 till ff.