Setback in Ranked games after 4 games in a row where persons went AFK

I went from bronze II to Bronze V after 4 losses due to AFK of players. Its getting a plague again with players going AFK if they don't win within the first 15 minutes. I wish RIOT could do something more about it because for me its taking the fun out of the game. I have no problems with players that are not top notch or have a bad day as long as they try. Just pushing the 'give up' button as soon as you get some resistance of your opponents or when the game takes some more time to develop is bad.
Report as:
Offensive Spam Harassment Incorrect Board