User blog comment:Zeowolf0/Wolf's Rant - Ranked Games/@comment-137.226.66.4-20130122112617/@comment-137.226.66.4-20130122165420

constructive criticism is explicitly encouraged by those little info messages Riot added a while ago. And every now and then I actually do get some feedback from others that helps me improve.

To avoid starting flamewars, I have become very careful when expressing criticism. It's kinda ridiculous to try to be overly polite to avoid offending anybody, but saying something like "please try to play more defensive and stay closer to the tower, you're starting to feed" will work wonders compared to the usual "stop feeding, noob" and "report my team for feeding" cries