Been rereading The Shiva Option and was struck by the number of closed WPs found in Home Hive systems. HHs 3 and 1 both were attacked by the Grand Alliance via closed WPs and HH 5 also had one revealed from the System Which Must Be Concealed. The Bugs also found one in Alpha Centaurus which was equivalent to a Home Hive. So........how many other core systems of the Grand Alliance have unrevealed Closed WPs? The odds as shown to us by The Author would seem to indicate MANY such WPs in core systems.
This would seem (to me) to show a need for energetic exploration of systems outside the areas already explored. This would be useful for both offensive and defensive purposes. Defensively, it is much to be desired that such WPs be found by one's own ships (and then properly fortified) rather than be revealed by an enemy attack. Offensively, of course, having such a weapon in your hands is very useful, history having shown that it is usually much better to fight on The Other Guy's territory than on your own.