Hi. I've been a member for a while, but admittedly I haven't used the site much. The few times I've tried to find hosts in popular places (Boston for example) there are too many to look at. A more advanced search would be one way to "thin out" the host list - similar to "that other site". Another idea would be to let active hosts subscribe to a notification list that potential guests could write to in search of a host. For example "Solo male cyclist from Canada is seeking a host in Los Angeles for two days starting on the 12th". Anyone interested in hosting could reply to the request.
Thanks for the site and keep up the good work!