There are a great many elders that are strictly top water stuff. They have learned how to use the index and that’s about it. If you ask something that is not easily referenced with a bout a hundred Watchtower articles, then they get very nervous. (They have just peered into the depths below and they have seen great big monsters lurking down there!) These guys instinctively know that they are shallow but resent it terribly when forced to confront their inadequacies.
Then there are the deep water swimmers that have seen (and skirted) those great big denizens of the deep (Why does God permit evil…really; Why has the Society made so many mistakes if it is led my the holy spirit?; Why are there so many stupid elders if they are all appointed by the holy spirit?;Why is the Bible so cryptic?; etc.) These guys know about these monsters of the deep but they do not want to confront them. They are looking for the answers themselves and when they are confronted with these questions by others it just reminds them of their own doubts. When they can’t convince others by the publications, it makes them angry because they realize down deep inside that the answers they are giving are wrong. Instead of being angry at the source of the problem they strike out at the much more vulnerable publisher in front of them.