Mrs. Jones says it very simply in one sentence:
Folks gossip to make themselves feel better about their sorry lives.
JW's have sorry lives so when someone leaves their sorry lives they dream up some kind of story that makes the one who has left out to have a sorry life even though often times those that have left are much happier. So the gossip runs rampant. They also gossip about those who are in who aren't real uber Jdubs and they gossip about those in the world and they even gossip about those that are more active then they are and they gossip about the world and about life and.....
YES, I THINK JW's are worse but of course maybe we're are just gossiping here LOL