I spoke with someone from Airbnb support and what I could gather was:
- One of the reasons the warning is triggered is if you don’t have enough reviews in a certain period. I think this is calendar quarters or calendar years. So, because I hadn’t hosted for 6 months (house was full with family members, which is it’s primary use after all!), I didn’t have enough recent high reviews.
- The golden number is 5 x 5-star recent reviews. This number probably changes but that seems to be the current situation.
- Nothing else seemed to matter in my case (he confirmed my listing looked good for everything else) but of course it pays to double-check your listing info, photos etc are accurate, well-presented and up-to-date. His only further suggestion was for me to drop the price further to get more bookings (and therefore reviews) so that the warning disappears.
- Finally, not approving a request counts against you. So don’t do that too often.
Some of this info seemed to overlap with how to become a superhost... We were speaking the same language but not sure we were on the same wavelength! I also get the feeling that the support team can’t give definitive answers because the algorithm is constantly being updated.
So, hopefully they have an air to the ground that the warning is too strong and hosts are getting put off. In the meantime, the info above should help with the immediate situation.