Improving the ranking system

Hello, Thanks for reading first and foremost. I have a suggestion that I believe will improve the ranking system greatly. I am sure many people are well aware of the negative attitudes in bronze and silver. I have witnessed it first hand. Why do these players that perform their best and have great attitudes get subjected to this? A major reason is that whether I die 16 times or 0 times or afk I lose relatively the same amount of LP as someone who has a great game, win or lose. With the grading system out I think LP should be based on personal performance. If i had an s rating and lose the game it still showed that even with opponents having the upper hand I still made it look easy, why do I lose the same amount as the person who struggles and complains? So I can lose the same amount of points and get paired with them again? If you win with an S+ rating it shows that it was less challenging of a game than it maybe have been for your B- teammate. Why are we earning the same amount of points if it was a clear display that the opponents who are ranked the same aren't a challenge? This would also reward players with good attitudes and don't afk. The afk players will lose more LP due to a D- score. Causing a greater loss of LP should reduce the likely hood of afks and maybe people are less likely to surrender trying to improve their performance for their team, thus improving the quality of game play. Please give some feedback.