I can really appreciate the idea. Being "charitable AND cautious", I would open my home to a fellow PB member pretty quickly, but would not just post my location down to the latitude and longitude for all to see.
Side Note: If you looked at my pond from google maps...you'd see the sorry excuse it was 3 years ago.
With that said, anybody that wants to visit can PM me and we can go from there.
No ground would be sacred at my place if I had a set of keys to a track loader!