@Alfie-and-David0
It is recommended to ask some questions before accepting a booking (unless you are on Instant Book, which i never use).
I allways ask for ID verification (if not present) and some information (if not present in the profile or not sent in the introduction message or if no reviews at all). If still in doubt, i decline (or ask the guest to withdraw the booking request because they did not read the listing and want something not possible)
Until now it works very well, no "troubling guests" (but my acceptance rating is too low for almost all my listings, according Airbnb. I don't care.)
Bestregards,
Emiel.