I personally find it interesting @Stephanie , because when you read the host reply to the guests review you get a strong feeling of who the host are and what hosting style they have.
And I always would choose to stay with a polite and friendly host then some who does not know how to
be diplomatic and lash out in a why that makes you "cringe".
And as @Sandra126 said you need to respond in a dipomatic way when the guest show ignorance or are totally wrong about something.
I personally take time to respond to reviws because it shows hopefully to potential guests who you are as a host and hopefully that gives you bookings in the future.