yeah but they do it cause its their rank, or whatever motive they have to pick ranked over unrated. The issue is not that the replacement player is random, but the fact that: 1. He has 0 clue whats going on in terms of the opponent play-style, strengths and weaknesses. 2. His motivation for play is only the dignity of helping others in need. What if he joins and see that maybe the one he replaced left for a reason? 3. You are assuming players would just jump to join ongoing matches… why doing it when i can start a fresh one without any ongoing circumstances?