Personally, I do not need "complete information" - whatever that is. I doubt I could express another opinion again if that was the standard.

Airbnb is on trial, I think, because people think they acted like jerks in trying to get someone to be quiet. Internet folk generally do not like people who try to silence others.

Regarding their actual obligations - as far as I'm concerned and legally, the risk is on the host. Of course, for their own benefit it'd probably be a good idea to help her out.