Some things she can find out from calling the camp. Some things, like the type of girl, may not be accurately found by calling a party that’s nogeia bedavar.
Personally, I agree with you about whether this form of crowdsourcing is effective or not. People online don’t know you much better than does the lady on the other end of the phone and may see things differently than you which can create misunderstandings. While I crowdsourced here about sems a bit, I’m starting to regret that and am sticking more to things like skirts if only because it’s objective and matter-of-fact. Some random person’s ideas and preconceptions about what you’re like may not be of much help.
As far as the camp is concerned, I don’t know anything about the camp besides for that it’s out West, but I do know Chevi Garfinkel and she’s amazing. But of course, I’m a random person and my ideas and preconceived notions probably won’t be of much help :).