There needs to be some sort of safeguard to prevent people from abusing this and running queries to do something an owner objects to. I'd feel horrible if I discovered that someone used my AI to figure out how to kill someone. Another problem would be privacy. My highly personal queries would be available to whomever ran that query for me thru logging.
This is not to say it's a bad idea, but it needs some thought toward protecting users or at least acknowledgment and warnings that their information might be available to unintended eyes.