Mt Whitney Zone Forums General Discussion Yosemite: Fewer People Should Climb Half Dome

I really don't understand limiting the number of people who can use these trails. There are 1000's of miles of trails in the sierras, why is it a problem if a very tiny number of them are heavily used?

The HD cables may be a special situation, but I really don't see the harm if 300+ people hike Whitney in the same day.