I have also found my bookings have dropped, it seems to be as I am not on instant book. I am using a room in my home and feel the need to be able to judge my avaiability for each booking. It is not a buisness, just extra income to help my pension. My guests seem to really appreciate the personal service we offer.
I have been considering trying instant book, but if I will get repremanded for cancelling and my superhost removed, it's not worth the risk.
As I have other responsibilities, eg caring for my Mother, I need to be able to consider each request.
I think the algorithms used as biased towards instant book and smart pricing, which I also do not use. I agree with the comment that as Air bnb has grown it has prioritied making money over friendship and informal hosting. It seems to be losing touch with it's roots of putting small time host intouch with guests, as it focuses on getting bookings and making money. This runs counter to why I joined.
I notice a suggestion to 'sleep' your listing for a couple of hours might increase bookings, I will try this. Not so sure about the idea of changing the name, as if someone was looking form me again, they might not recognise the listing.
Interested to know others thoughts on managing 'the system', lets remember Airbnb are nothing without us hosts.