ranked match

some times people leave in the middle of rank match game, so it will be 4v5 and its hard game and they will lose anyways, so can you please decrease the derank points to the team which is having 4 people and that's it.
and you can ban the person who leave like he cant play rank match for example 10 min like the system of cs : go and make a surrender button so they wouldn't waste time and waste points
and then can use the button only if someone left the room