You probably don't know what "camping" mean. :P
But as said by many people, waiting the pop of a NM is part of the hunt, and not necessarily it should be 72h. You had to wait even after Cutter's Cry, Ifrit or Aurum Vale in 1.0 (15 minutes). You should not see HNM hunting as your only one activity on A Realm Reborn, anyway I can understand that the time spent on camping would be unacceptable.