Same with me today. I also just got a message that I just moved up to a Level 1 Ranking. Perhaps the algorithms consider rankings so the more money your listing profits Airbnb the higher your ranking will be.
Take for example a host that may post their property and book a guest outside of airbnb. For them to keep showing up on the map search would not be fair to the Airbnb community.
It kind of sucks be left out of map searches but there are fair arguments for the airbnb corporation and their profit objective.
One way to circumvent is to create a custom listing link and send it out through all your social media. start advertising your own listing. I havn't done that but it could help grow the exposure quicker and get bookings sooner. Which will start ranking you up higher to get included in more search results.
http://airbnb.com/h/peacefulfarmking
http://airbnb.com/h/peacefulfarmguest
http://airbnb.com/h/peacefullfarmdreams
Peace to you all.
Patrick