Honestly, this is ridiculous .
If a player gets banned from the game (You see the notification pop up after match/player you reported has been punished) it should count as a lost prevented. I made the stupid mistake of saying I was in my promotion games; Sure enough a player was like "time to troll"! Then proceeds to pick a random champion and intentionally feed. Both teams reported him and sure enough the notification popped up that a player has been punished.
Second game; Ashe locks in jungle with no smite - proceeds to go 0-9 trolling... even admits to it in chat.
Third game; Twitch has 6000 ping and disconnects.
What I don't get is I've gone over 50 games without a single issue and the second I hit my promotions I get three 4 vs 5's in a row.