It is not paid. Your booking will appear as $0 on the statement and you are still responsible to do your own vetting.
I can understand how this can be stressful on a host. We are currently hosting a displaced single mom and her three children from Malibu between our paid bookings. Because of the back to back nature, we are paying out of pocket to have it professionally cleaned afterwards. Costs do add up and it is not without sacrifice. But it is worth it just to help in any way we can. However long we can.
For us, going into December, it is impossible for us to operate at $0 due to our mortgage, utilities, and cleaning costs. But we have figured out a net 0 price for long term stays that we feel comfortable disclosing to people who absolutely need it.
Our Open Home family + dog has just checked in and they are so sweet. We would absolutely recommend doing it. No question.