We started playing a game and this Kay/o just started to be an \*ss to everyone, and told him to chill out and everything but then we change to attackers and the guys was running every round towards the spike and griefing. Even telling the...

so i did my placements, got silver 3 and every single one of my matches (including the 5 placements) have been high gold / low plat, even after being placed. Is it just because I'm relatively new so the game is trying to figure out my MMR?...