DQ hurts low elo too

As a silver player who only plays solo, I've already seen a lot of DQ boosters on my team as well as on the enemy team. It also devalues my own carry as I went from b2 0lp to silver 4 in about a month by myself, While I have a friend who went from silver 5 to silver 2 because he was boosted by his friends. I want my rank to mean something and these days it doesn't feel like that except to myself.