Queue health & Autofill problems solved.
What would be the harm in providing a small IP incentive for ranked roles that are in need?
Instead of Autofill, maybe there could just be 1.5x-2.0x multiplier on IP. This multiplier, ideally, would only be in effect when it's needed - similar to what Riot had in place when Team Builder was introduced.
I'm certain I'm not alone in mentioning that I have had several people troll because they received an autofill position (99% of the time it's support).
I am also certain that it's very difficult to not begin a game tilted/feeling trollish when I'm forced to support. Although that's on me, and I don't do that, the bad taste autofill provides is discouraging. It makes the game less fun because I feel like I'm doing a chore rather than playing my champions I prefer for solo queue..
I would take my solo Q picks support, but I don't think Garen/Pantheon support would have a positive effect on my teammates' attitude.