AFK in rank Seriously????

Why the fuck do u think it's ok when someone leaves a rank game and still get minus LP when u lose. LEGIT ur at a disadvantage of 4v5 with tilted ass teammates flaming each other and everyone's day will be ass. I don't think I'm the only one have to deal with this situation and feeling this way so plzzzz for the love of GOD Riot plzz do something about this about the afk leaving rank players plz for the love of god.