I completely understand your point. I also think this particular thing goes along well with the theme of the ride. Only in the sense of all the flags, gear and individual items that people who have scaled everest use. Granted, hair ties are far from ANYTHING required to accomplish such a feat, it just seems fitting and it's not technically causing detriment to the ride itself. Most people don't even know about it so if it stays that way, cool. If it becomes something that gets out of control, by all means, shut it down.Hey it's a free country but when it impacts the cleanliness and appearance of a ride then I kind of take issue with it. How is that any different than throwing napkins empty water bottles or trash on the ground? They already have general housekeeping issues and this just adds to it. Maybe it feels whimsical and carefree when you do it but it just seems inconsiderate to the rest of the park goers who do not and who may not appreciate it. It is this sort of attitude that keeps them from selling gum in the parks. Not trying to attack you here but offering a counterpoint...
Again, please note that I am in no way saying you are wrong. I completely respect your viewpoint.