Since my original comment didn't include explanation for why it's a good thing to restore lands back to their pre-bushcrafted state and the fact this very task

Since my original comment didn't include explanation for why it's a good thing to restore lands back to their pre-bushcrafted state and the fact this very task is done by NPS and USFS, I edited my comment to add that missing info. Not sure if it was you asking about it that got it upvoted or the additional explanation. I'd guess both and I'd further estimate that most people that are not involved in the hiking/preservation community could pass near one of these 'shelters', without recognizing that it's bad for the environment. It's easier to recognize a call to destruct structure such as this as a vandalism.