One of the chat lines of the Center for Appalachian Trail Studies has been ablaze with debates about dogs. In some instances, the posts have been downright nasty. Dogs chase wildlife Dogs offer a threat, real or imagined, to other hikers. Dogs take up space in shelters. Dogs lift their legs on packs and tents.
Dogs leave their piles on the trails and in camping areas.
On the positive side, dogs are a companion and source of protection. They are a bridge between man and the natural world. Some hikers say the problem with dogs on the trail isn't the dogs, but their owners. Try telling that to an overworked and under-appreciated trail maintenance worker sweating to make the trail human friendly. I, personally, would rather not see dogs on the trail.