ChaCha and Trust

A while ago I stumbled upon ChaCha which has a unique claim to fame. ChaCha allows you to perform standard search, but also to perform human assisted search! You simply create an account and ask for guided search, and a human on the other side (an actual human that is) assists you in finding the best search results. Another service provided by ChaCha is mobile search, where you send a question and the human guide sends you back an SMS with the requested search results, so you can find a specific restaurant  with a specific rating in any place with really minimal effort.
The idea did occur to me before to be honest, but I ridiculed myself for being outlandish! Imagine people doing the search for you on the other side! with well trained cheap labour in a remote country it seems like ChaCha did it, I’m not sure though it is cheap labour and I certainly hope they are being fairly paid.One would of course wonder how can you trust a remote person to provide you with results, I personally find it hard to accept and would mostly prefer doing my own search, specially that I’m good at it.
Would you trust a complete stranger to do a search for you? ChaCha’s main challenge in my view is to foster a community of trust. ChaCha users and the search guides need to develop a unique form of trust that enables them to work together for the good of the users. At the moment I find it hard to figure out what are the elements of a trust model that would be valid for a service like ChaCha. Can we make this trust model explicit in how ChaCha functions? How will users develop trust in complete strangers to perform searches for them and select whatever results that are relevant for a ChaCha user?.
To my mind if ChaCha is to be a success and I think it will be, I think understanding the basics of trust and how users assess their interactions with the search guides is key to the future of ChaCha. 

Written From: office, Weather: so damn cold, Mood: energetic but worried