I'm kinda curious here....
How can you ban someone for playing badly?
Although this isn't about me, but I'm talking about this so called "intentional feeding" ban. I can see if you're playing someone for the umpteenth time and you're normally good at that champion. But what about those times where someone is trying out an new champion and ranked, dies too often, and gets banned for it?
Flawed system is flawed on account that you can't expect perfection from everyone.