Just wanted to chime in on the issue. A couple of the agents (including myself) in my office started using buyerhunt a couple weeks ago. I have already been contacted by 4 unlisted sellers. Not only did i get to show my buyers some new property that no one else had seen yet, but i also got two listing appointments out of it. It seems to me like the sellers that have contacted me intended on listing, but hadn't decided on exactly who with yet.
I had the same concerns as you Drew, but have been pleasantly surprised. I'll keep you guys informed of how the listing appointments go later this week.

Regards, Selling Scottsdale