@Fiona294 Airbnb appears to be distancing itself from home shared hosting in favor of hostless, commercially managed properties that are more similar to staying in a hotel. So I think that you will see this trend continue - us hosts being treated like hotel desk clerks. This means we hosts will need to gently educate our guests, especially those that are new to AIrbnb who do not understand the original community-based, home sharing culture.
I build many screening tools and guest requirements into my listings, which I am able to successfully use to ensure I feel comfortable with prospective guests even when I had Instant Book on. If they cannot follow my instructions as listed in my House Rules (complete profile; Government ID; purpose of trip; who they are bringing, etc) then I have no problem declining the booking. When the guest Instant Books, I simply let them know nicely that they need to go back and read my House Rules and meet my booking requirements to hold their reservation. I have only had one or two instances where the guest cancelled their booking after reading my House Rules - and that's a good thing, as far as I'm concerned.
So you might think of doing something similar - We should never have to feel uncomfortable with who is staying in our home; unfortunately, these days it seems that Airbnb wants to pressure hosts into accepting any and all guests into our home. It's therefore up to us to say "no" when we do not have a good feeling about a booking or request.