Aeson
I am the mysterious professor.
There is always a chance for scams at a time like this. I haven't used Airbnb, so I don't know the particulars of it. In this story it mentions the organizers are encouraging people to make sure the rental is owned by an individual. It seems like a creative way to help.
www.cnn.com

People around the world are booking Airbnbs in Ukraine. They don't plan to check in
Airbnb hosts in Ukraine are getting flooded with bookings from people all over the world who have no intention of ever checking in. It's part of a social media campaign to ensure money gets to Ukrainians by booking, but not staying in, local Airbnbs.
