I initially sided with Groundspeak on this issue until I read all the responses, visited one of the cache pages and the trail's web page. I have changed my mind and believe these caches should be allowed. If we are to make this privacy requirement on all caches then all caches will have to be removed. I see it this way; To even walk the streets of the USA you are required to carry identification and you have had to give your information to somebody. This goes for vehicle registration, insurance, and Groundspeak themselves. Can I cache Anonymous....NO. The trail has a privacy policy just like everyone else who gathers information and if the national parks were to allow caching within the parks, many of us would get permits for backcountry caches.