Whoa. My husband and I were pretty active geocachers when we were in NJ. This rule affects a great number of caches in the state, especially in the pines. We placed several while we lived there, and I think this would affect almost all of them.
As a rule, I found geocachers to be pretty responsible and respectful of the surroundings, and quite often took other people's trash out with them. "Cache in, trash out" is the rule. However, we did almost always find them by locating the cacher trail in the natural foliage, which seems to happen pretty quickly upon cache placement.
I know placement of geocaches has been a controversial issue amongst the piney folks of this forum, which I fully understand. I admit that I did not think much about it until I stumbled upon NJPinebarrens.com, and agree that there are places where geocaches do not belong. Particularly when they are placed directly in sensitive ruins. We found one, I believe it was at the Hampton Furnace, that involved an actual piece of the ruins that was removed and then used to cover the cache.
But I digress.
I think this new policy will hurt geocaching in NJ quite a bit. I am not sure how I feel about this, having enjoyed some really amazing spots in the pines that I would not otherwise have found. I am of two minds.