Although I like the idea I don't think it can work. Anytime someone loses they'll report scripter. The real solution is what RIOT is already working on which is an in game cheat detection algorithm. It was announced not long ago and the punishment will be a permaban.
I'm not a great player but I know when I see a scripter. Today for the first time I'm 100% the player is a scripter. fulmatou is his name and he was ulting me as Xerath in the fog of war while I was going left right left. My movement speed was increased as I was Quinn in Valor form. The first time it happened I figured he was lucky. The second and 3rd time became really obvious. This player has horrible positioning and an all around horrible player but his skill shots were dead on.
I know some will say "cry cry cry" but I'm not one to complain about losing a game. I've never rage quit and losing is just part of the game to me. What I don't like is not being offered a fair opportunity to win/lose.