Dear Riot: A suggestion for fixing match making times.
Ok so we know that the problem with matchmaking times being so long is that not enough people are wanting to play the less then fun role of Support. Riot instead of trying to add in this auto-fill thing. Have you considered buffing the Support Role as a whole? Making it more fun and actually give Supports carry gold. If you change the Support Role as a whole and make it more fun to play more people would be drawn to it. You could start making more Support champions, you could make it so that Supports actually earn equal gold when with their lane partner. Or give Supports a way to earn gold themselves that doesn't include jungle camps or lane minions.