Well it is. People "from away" get in trouble up here all the time by overestimating their ability and underestimating the difficulties and hazards.
Since much of the AT in NH is along ridge lines above tree line, there are no camping allowed. It is both illegal and dangerous to do so. Again, suggesting it is possible to camp along ridge lines along the AT in NH is irresponsible. To camp "off the ridge line" often means losing 1000 or more feet of elevation and going a mile or more out of your way. And if you pick the wrong trail to drop off the ridge line on, you can really get in trouble. And if there isn't a trail leading off the ridge line, it's not possible to do so.Yes, camp sights along the ridge lines are often scarce, but they are plentiful off the ridge lines, and even along the ridges, they aren't non-existent, they just require some planning and/or "campsite" flexibility.
Unfortunately, many people leave their brains and common sense at home when they travel up here. The number of rescues performed here in a year is proof enough of that.They just aren't as big an issue as many people make them out to be, especially if you walk in prepared with basic knowledge and behave with reasonable common sense.