I agree with @Helen0. I always ask people why they are coming to the area, what they plan on doing and to tell me a little about themselves.
I'm finding that many guests have only recently set up an account, and/or have no verifications or reviews and have not filled out a profile. Additionally, some people will book on behalf of someoe else, so you may end up with a different person in your home than the person who is in the profile. This is concerning especially for long-term stays. Making it mandatory for guests to meet certain requirements and answering questions before being able to book is critical for safety reasons, in my opinion.
Yet Airbnb has removed many of the security measures we had a few years ago in the name of "non-discrimination". We are forced to switch to IB in order to require guests to have profile pictures or other verifications. And yet even with these requirements in my settings, I still get numerous requests that don't meet my criteria (verifications, profile filled out, reviews) and that I don't feel comfortable with for these reasons. Many people don't bother to answer your questions (or read House Rules as noted). But if you don't pre-approve within 24 hours, you get dinged for not being responsive enough, and if you decline or cancel bookings later if you're not comfortable you still get dinged!
I'd rather focus on getting the right guest, that I'm comfortable with, even if that means it's not quite as convenient/easy to book.