@Nicole2223 I find this to be incredibly annoying and is definitely on the up tick. If I don't get any responses 48 hours before check in, I send a text message, this way I determined if I have to cancel I can cancel them with still 24 hours before check in and they won't be able to leave a review.
In the event that my text is not returned within maybe 8 hours, I escalate to Airbnb and have them reach out to the guest. This has happened about 3 or 4 times since late last year, and I've come within literally minutes of cancellilng at least 2 of these guests before they finally responded.
Most of these guests have been okay in terms of how they treated the space, but also didn't bother leaving reviews.
One hilarious example of entitlement was the guest who never replied, she was checking in over Xmas weekend, the phone on her account was wrong, etc. etc. Finally she is reached by Airbnb. But, don't you know she messaged ME within 5 minutes of entering the house because she could not find the wifi password that is listed on page 1 of the house manual, in bold 'WIFI' that lists the network and password. She was an okay guest otherwise, a little messy, left no review.