also some people are shy or uncertain when it comes to posting.  It takes some quite  awhile before they take the plunge.  Example, I lurked on the SE forum for several months before I finaly joined and made my lst post.  So, if it seems that way it really isn't, its just that some of us just plain like to gab/gossip/chat/sing/ etc 

 while others are more quiet, reserved, humble like Tesco  
