The punishment system should stop being a troll reward system.
Currently you're literally rewarded for trolling, because you troll, run it down mid, ruin someones game and hold them hostage for 20 minutes voting no to surrender on a game you ruined and guess what? You don't get punished. People will probably flame you in chat for ruining their game and some may get very mad. So what does Riot do? They reward your trolling by allowing you, the troll, to report people who got mad and instantly providing feedback that the person you screwed over got banned.
Good system Riot! Allow the trolls to not only not get punished, but actively get rewarded for trolling by not only ruining the game but ALSO ruining others accounts!