Why don't they increase the bar for newbies to get into such a system?
If they know that some people just play a few games and then quit, let's say they only can get Elo when they played a specific amount of time or won at least n games etc.
There is a minimum of 10 games before people start being ranked. People who quit early don't get ranked. People who have played 10 games gain a new long-term goal.
If they know that some people just play a few games and then quit, let's say they only can get Elo when they played a specific amount of time or won at least n games etc.