Simple fix to the troll problem in League.
Add a vote to kick system in champ select. If someone wants to act like a troll then they can get treated like one and booted from games. Why is this not implemented? It would solve the problem of overpopulated trolls and game ruiners that seem to permeate League. DOTA piggybacking off the WC3 engine was smart enough to have a vote to kick system and that's 15 years ago. Get with the program Riot!!