Well, some of these scammers are trying to get the host to book outside the platform so they can save on Airbnb service fees.
Then there's a couple of well-known scams, one of which is the scammer sends you an Inquiry message saying they are travelling to your town on business and their company is paying for accommodation, but they have a relative in town they can stay with. So they propose that they make a booking, but not actually stay. The company will pay for the booking, and the guest and host will split the payment.
They ask you to call them on Whatsapp (they write out the number so the algorithm doesn't block it) to discuss the details. The they say that as soon as you see the booking confirmed, you just send them half the money back. But after that happens, the payment for the booking fails, because it's a stolen credit card scam.
What amazes me is that people would put so much effort into trying to scam people, which likely isn't successful the majority of the time (most hosts are way smarter than falling for something like that), when they could just get a real job.
@Jon2951