New idea for reducing trolliness

I don't know about you guys, but I, personally, am sick and tired of having to dodge from ranked games and suffering all of the consequences of that because of Disco Nunus {{summoner:2}} or anyone else who wants to troll League of Legends.

There's a chance that this has already been thought of and if it hasn't I'd be rather surprised, but anyway, I would like to see a system where, in champ select, you can vote to kick a player who threatens to troll and if all 4 players agree that that player needs to be removed, he will be, and be banned for a certain amount of time depending on how frequently he's kicked, kinda like the punishment system for dodging.

I understand that someone could seem legit (pick a sensible champ and summs for their role) in champ select and then troll in game, but it would certainly make this less likely.

Maybe in addition, there could be a similar system for after the game where if all 4 players agree that someone on their team is a troll, they will lose double the lp and be banned for a while or something like that.

These are just some ideas that I've been thinking about for the past few days and some I thought of just now, but anyways, any feedback is appreciated. Please let me know if you think that this is a good idea, or if you have a way to make it better, or if you think that this would never work at all.