That's a good point actually. I hiked 20km recently and got to a very scenic waterfall, but not only were my photos of this momentous occasion full of some people who were having lunch with their group right by the waterfall, but also of course I could not access the spot they were at (since they were taking up the whole plateau/rock that acted as a nice plaform). We hung around, drank some water, messed around on the radio, but those people were there before we arrived and stayed after we left. With all that considered, obviously the reality is there are just lots of people who want to see the same cool stuff -- I don't think one can reasonably argue it's "selfie-takers" nor "hoarders", since it's quite subjective what amount of time or experiential indulgence happens to be the optimal acceptable level.