Interesting Idea Riot Look
Don't make your ELO system in ranked be affected by the outcome of the game in a win / lose situation but instead reflect how good yourself did by farming, kills, deaths, assist ratio. If you did really good you gain lp not lose it. If yourself did bad with no assist's low gold no assists on dragons or towers then you lose lp per game. This makes more sense hence its YOUR ranked game you want to win if you choose to do so reflects who u play with in the upcoming games. Sooner or later the trolls with be with the trolls and the people who want to win try to get better at assisting your team not just getting the win. Anyways hopefully #Riot will read..
Btw the Win/Lost is a good idea for lets say Ranked 5's where your working together as a team to get that win. But Solo Que.. Base the elo on the stats for the player soloing please.