Alibaba has a feature where they list the response rate of sellers to queries sent via the site. This could be an angle for AirBnB. Log rejections and acceptanc

Alibaba has a feature where they list the response rate of sellers to queries sent via the site. This could be an angle for AirBnB. Log rejections and acceptances and ignores. Run reports on the data for a scorecard. Egregious violators can dealt with then in a number of different ways i.e warning notices, lower search rankings, burning cross badge beside username etc.