Lots of folks don't like to share GPS info due to concerns of mis-use by the very small yahoo minority found in the 4x4 community. Sad to say, I've seen it happen over and over.
I don't mind sharing locations with folks after I've travelled with them tho. I lead many trail rides in the central part of the state so that folks can see some of those off the beaten path areas. Once the new Rubicon is here, I'll post a few trips - some in the Jeep, some in the Power Wagon.