Originally Posted by The Hobo Lord
Its cuz you weren't under the scrutiny of the tribunal. If someone has been banned to the 2 week point, ANY screw up, even up to 6 months later, will give them a perma. Give an example of where you were "bad", if you were in the tribunal would you think it would be punished? It probably would, but luckily for you you aren't on the tribunal's radar, some ppl are and they will get punished or even perma'd for acting just like you do. Imperfect.
It takes A TON of reports to even get into the Tribunal.
It takes A TON of reports and punishes to get a 2 week ban.
It takes A LONG history of bad behavior to get perma-banned.
There is a decay system in the game btw.
The more games you play without getting reported the lower the percentage of the games that you did get reported goes. Riot takes that into consideration and it can even get you out of the Tribunal.