Riot should allow for promos/series wins to be conserved if game is decided by leaver.

Within the past week I have gotten from Silver IV into my promos for Silver II. During my promos my first game consisted of a toxic player who continued to flame not only our team, but the enemy team as well. In the second and final game, someone on my team fed (not sure whether it was intentional or not), and then left. I am not angry because someone fed or left in ranked, I am angry at the fact that I was kicked all the way down to 67 Lp due to players who cannot mute people and keep playing. I think that if you are in a promos/series and a game is decided by a person who left, then it should not be taken against you. I understand that that would be hard and nobody could predict if you would've still lost that game. Another solution to this problem is making the Lp lost not as substantial. I just recently played a game where my jungler left and my team won many team-fights as 4, we did not win the game and I did not feel any joy whilst playing it. League has brought me many years of joy, but I am not sure I can continue playing if nothing is done about me feeling as though I am being punished when other people leave and/or feed. I occasionally have bad games and feed the enemy team (never intentionally), but I never give up until my nexus has exploded. Riot, I hope you do something about this.