A couple years back, my partner and I alerted airbnb to what seemed pretty clear racism by a host. The prospective host turned down a request put in by my partner (who is black and who has host reviews just as good as mine), yet five minutes later said yes to my request for the same dates (which came with a white face attached). We were impressed by how seriously airbnb reps took the matter.
Oddly, when I have raised the issue of hosts who are trying to appear to be offering their own residential space, but are in fact running “micro hotels” and even motels/rooming houses, I get no response, no nuthin’ in reply from airbnb. The practice is fraudulent, and airbnb ought to take steps to fight it, simply for that reason, as well as in connection with important social and local-economics issues.