Heh, I'll simply quote my own comment from 6 years ago, when AirBnB was first featured on HN:
> I'm a couchsurfing afficionado as well, but this site appeals to me, partially because it ISN'T free. I always feel too obliged to my hosts, and handing over a small some of money would assuage my guilt that I hadn't thanked them enough.
https://news.ycombinator.com/item?id=653727
To be clear, Couchsurfing was entirely no-money -- you didn't pay the hosts either, the idea was you "pay-it-forward". Are you asking for a paid marketplace with no fees?
Anyway, you can disintermediate AirBnB. The last AirBnB I stayed in, in HK, I booked for 3 days via AirBnB and then decided to stay 3 weeks, paying the owners in cash.
(I also did that with an Uber driver in San Jose. We'd gone to the office in an Uber, but I realised I needed to head home, and my phone was broken. The driver asked my friend to book a journey via Lyft, as he wanted the ratings from that platform. Then I needed a 3rd journey, and realised I could simply pay him in cash. Makes you realise that all marketplace sites do is connect people, once two adults are in contact with each other they can arrange any economic deals they want).