I went to an Airbnb where the host had a ledger of all the previous guests that had stayed, with their personal information and their passport number. And it was left in the apartment for you to sign, so I had access to the passport number of literally hundreds of people from all over the world.

And it wasn't a mistake as the host asked you to sign the ledger when you arrived.

In some countries, maintaining such a ledger is actually required by law.

I think the parent poster is more concerned with the fact that the ledger was available for guests to read.

As usual with tech companies, you are also the product...

> they need to ban giving my personal info to 3rd party services.

The GDPR makes this illegal.

In fact, unnecessary personal information is now a liability, not an asset. Thankfully.

I've seen this before too. Clearly shady.