[lavishlatern]

Pretty much all hotel chains require ID these days, even if you're paying with cash. There are also some state and local ordinances that require hotels to take ID of guests, so I doubt it's Airbnb's choice to do this.

Deletion is another matter though.

[Mauricebranagh]

In the UK a few years ago when I wanted to stay on after a conference for a couple of days they demanded to see my passport.