I'm not sure it would solve anything to be honest.
Lot's of then don't play further as they want to play "live" and don't understand the correspondence chess concept. Some greeters would not have any further games as they would come up against strong players, thus losing them points.
I think it is what it is.
Since I've been a host at Wellcome To Chess.Com I've hosted many a very interesting game and meet many beautiful people,it's a great way to meet new heads.
But my point is maybe two thirds of the games my opponnent makes one move and wham bam thank you mam,the persons disapears without leaving a trace or a goodbye and I win the game on time!
Would it be a good idea to change these games from unrated to rated so maybe the others might take the game more seriously?Regards
Gabriel!