bendover:
you're actually beating a dead horse here
Fortunately (for the horse), he's dead and doesn't mind being beaten. But bendover is right - there are just people who don't comment, probably for a variety of reasons, or comment only enough to keep their access from being limited. There also, though, are readers who make quite thoughtful comments; that's what to focus on. In the early days of the Library there was virtually no commenting at all. That changed for the better in what is known around here as the great Comment Explosion. We continue to reap the benefit of said Explosion.