Thank you for sharing your experience
Yes we asked recently, the only answer we got every time is this:
"To be selected for a Category, listings on Airbnb go through a curation process. They’re evaluated using machine learning to analyze information such as titles, descriptions, photo captions and reviews.
Listings can appear in multiple Categories if they meet the criteria.
To improve your chances of being included in a specific Category, make sure your listing’s amenities and features are complete and up to date. If possible, it’s also a good idea to have high quality photography of the key features of your space.
Here’s a handy guide on how to take great photos of your space using your smartphone:
airbnb.com/resources
Listings are categorized algorithmically so it isn’t possible to categorize your own listing. However, you can increase your likelihood of appearing in a Category by making sure you have selected all of the relevant amenities and by highlighting them with front-page worthy photos."