Yellowstone NP is a great place and the rangers and other staff are doing their best to preserve the beauty and features of the park. Been there many times over the past fifty years; winter and summer, and the Park Service does a good job in managing the park so people can enjoy their trip. Yes there are times when crowded conditions cause a stressful trip, but that comes with the territory; if you can't plan for a fall or spring adventure. As far as having a big rock at the rear of a camp site, that was probably placed there to prevent backing onto vegetation and eventually causing damage. There are some good USFS CG's not too far away from Yellowstone that can handle the overload if can't make it to the park and you want something similar. Hat's off to the NPS employees, they do a good job!