i disagree. it's tough for me to explain but there seemed to be a really kind culture around couchsurfing that was about sharing space and experiences with people from all over the world.

the role of a host is at minimum to provide a safe place for someone to crash. i really felt safe at the ~10 places i stayed. I'm male, so definite bias, but i met other surfers that were female and had similar experiences to mine and female hosts that never had issues. profiles could have shaped the version of couch surfing i was seeing however.