Yes its a lot of effort to scrape some website which might change its UI.

Also an UI is not a scraping API.

Also yes you also need proof. Just putting it online is not a problem. Even doing temporarily because you are really away for a period is fine.

You can't link a web page to the person behind it. Maybe Airbnb is in the right to offer the service in the country, it's just nobody could verify/enforce the ability to rent short term.