Just like any other competitive game
Since a lot of people playing comp find “amusing” to leave when the game starts, let’s make them have a temporary ban (like 5-10 minuts or 1 hour max if it’s repetitive) and make the other players lose less elo when finishing the game to balance things
Agreed for the final result - but players are literally crashing frequently, so it would be hard to know a rage quit to an actually game-closure crash right now.
For the players that crash, they should implement a short rejoin timer. If the player isn’t back by that time or if the match ends without them, then they should be penalized for it.
There already is a temp ban for leaving comp.