@Augustus13
We get this from time to time. Either video or they want 'high resolution' photos.
Two possible reasons for wanting this are;
A) they want to copy your listing on another platform and take money from unsuspecting guests. They show up at your place and it's occupied. The scammers have vanished with theirs and maybe a few other guest's money. This isn't uncommon - it happens.
B) A video provides a means to "case" your property for the purpose of theft or squatting. The video tells them what's inside, they can check for alarm systems, cameras, easy entry points. And they can check your listing on Airbnb and see what dates are booked or not.
You've already figured it out, and wouldn't provide it, but this is for the benefit of others who may not realise what it's about.
Good luck and happy hosting 🙂