I have to say from my own experience, I will never host a guest who has 3 stars and under or bad reviews again. We have been hosting since 2017 and most of the time, it's been fine.
However, twice I decided to give guests the benefit of a doubt and twice I was disappointed.
The first guest had a low rating and one review which said 'unmentionable.' They left the place in a mess, moved furniture, juice stains on couch and floor, make up on white towels, half eaten food left on counter... you get the drift. However, to be fair, when I reviewed him saying that he had left the place in quite a state, he wrote back offering to pay extra for cleaning and apologised.
Another guest had a 2.5 star rating and only one review which said there was a hiccup with communication and that the he had left a closet door out of its railing. Seeing that it wasn't a damning review from the host, I hosted this guest and his friend. They left the place in a worse state than it had been since we started letting it out about 10 months ago. They also checked out an hour later without asking. When I gave him a bad review, he berated me through messaging saying I was unfair and petty. This led to correspondence back and forth, with him challenging me as to why I said they weren't conscientious or tidy guests, and me having to give him a blow by blow explanation -- excrement in toilet bowl, coffee grind spillage in , on lid and on sides of indoor white bin, not observing check in or check out time, etc. Unpleasant for both parties, to say the least.
So, never again. Twice bitten, twice shy is my new motto.
It's not worth it to me -- not only when bad guests clearly disrespect another's space, but also the potential of post-stay aggravation.