I was under the impression that unfavourable reviews are filtered out? I looked into staying in New York on AirBnB but given that not many places had negative r

I was under the impression that unfavourable reviews are filtered out? I looked into staying in New York on AirBnB but given that not many places had negative reviews, this made me question the validity of it, especially considering the amount of money that would be shelled out to stay (the other side of the world for me).