@Colleen194 Not exactly sure what information you're referring to, as Kath said, full name, ID, are not available to hosts, but you can ask for them directly from a guest before approving their booking, as well as a clear profile photo, if they don't have one on site, if you choose. If you get an inquiry or a booking request, one of the first things to do is click on that guest's profile and read any past reviews they may have, which will give you an idea of the kind of guests they are. Sometimes they're new to Airbnb and won't have any reviews, in that case, you'll want to dialogue with them through airbnb messaging to get some read on them. If you are using Instant Book, you can specify in your settings that only guests with verified ID, and previous good reviews are allowed to IB.
It's also good to ask guests what brings them to your area, if they don't volunteer that information.
Here's an example, culled from past messages received from guests, of a really good first guest communication. Most won't be this great, but I'm lucky to get a lot in this vein. This guest turned out to be just as lovely as her first communication.
"Hi Sarah, when I read your descriptions of the place, my heart jumped with joy :-)! I couldnt hope for anything more amazing, to be honest. I am a young woman from (XXX), who is coming to Mexico for a retreat/coaching training at Haramara. I am coming a few days early and would love to stay at Sayulita. I am a nature loving graphic designer/coach-to-be and I love creative activities (drawing, dancing, composing music, writing...) and meeting wonderful people. I would really love to stay at your place. Sending you warm greetings! XXX" (name and guest's home country withheld by me)