The risk vs rewards under this system would discourage bad hosts from joining the platform. For new, honest hosts, it would be a minor inconvenience at best.
This is so detached from reality. It would wipe out probably 99% of listings from people not doing it professionally.
It is okay if certain people are excluded because you only want people hosting that are SERIOUS about doing it. If you can't do the surety bond then you simply aren't ready to be a host. It really is that simple.
fraudsters would easily game this. ask a bunch of their friends to "stay" , or even create a bunch of fake accounts and "be our guest"
https://www.businessinsider.com/airbnb-paying-10-percent-int...
Airbnb already holds the money for 24h after check-in, which is enough to defuse 99% of scams. The problem is the guests that book outside the platform, then claim they were scammed.