Thank you for your report.
I sadly get this message every other game. On the games I don't get it, I'm sure someone else has because a report was certainty warranted. I'm writing this post to vent a little frustration due to the fact that I haven't gone a single game in the past week (to my recollection) where someone (usually multiple people) are at each other's throats for almost no reason, even on the games where we demolish every lane and win in 20 minutes. I don't tilt because of it, even if it's aimed at me, but it makes me sad to see the ugly side of humanity every game and sucks the fun out of every game.
Won't quit because I love the game, but I don't think it's possible to get 50% or more of games with no toxic players.