I've been with AIRBNB for 12 years, mostly as a Superhost. I have rented rooms in my home, and now have several "Casitas" on my property that I rent on my Homestead. Most of my stays are 2 weeks to 2 months. Community is important to me, and I have had too many uncomfortable guests over the years to not try to vet who is coming to literally live with me.
I've watched AIRBNB and Guests change over the years. It used to be much friendlier, I feel, more like B&B's used to be when I travelled in Europe. Now most of the people who come behave as if I managed a Motel 6. Or maybe that's just the increasing impersonality I percieve is happening in our world. I'd love to read people's Profiles, but hardly anyone makes a Profile - just "Hey, I'm So and So". So I look for reviews, which can be helpful, although this summer I hosted a woman with several good reviews who was a raging alcoholic and left damage, so maybe I'm the lucky host who encountered her during a psychotic break! But mostly reviews are a good measurement, and if you take a reservation from someone who doesn't have any you may be taking a risk.
One rule that is important to me is "do they bother to introduce themselves? Do they tell me something about themselves?" Maybe I'm old school, but someone who plans on living in my home or on my property for a month or two months or two weeks is someone who owes me the courtesy and common humanity to tell me who they are. If they don't do that, it tells me they think I'm a Motel 6, and they would probably be unpleasant to have to be around. So no introduction or profile or reviews, no rental as far as I am concerned. 12 years has taught me something