@Joanne38
Deciding on a booking can be tricky - trust your gut feeling. As a general rule I don't take bookings from locals. If you live in the same town as my Air BnB and just need a "chill out night" my gut feeling is my unit is going to be your party house or something else not really holiday or work related.
My Air BnB is basically my superannuation so I try not to take risks.
Most guests will indicate their reason for staying - coming to play sport, family wedding, work related - too little info makes me suspicious - and I would rather have my place sit empty for a night then be picking up the pieces from a bad guest. I budget that not ever night is booked and that it is good business sense to follow your gut feeling.
I don't take instant bookings for this reason because usually I can respond very quickly once I have done my basic checks on the proposed guest. I've been doing short stay for 22 years and I have learn't to accept that when your gut feeling says decline - then so be it.