I fully understand that it is impossible to screen out racists and other people who discriminate before they sign up as hosts. I am glad that Airbnb has a non-discrimination cluse that every host has to agree to prior to joining and I believe they do have a strict policy against violators.
I believe Airbnb and ths host community need to be vigilant about this for two reasons. First, I do not want to be associated with people who are prejudicial against others based on race, age, sexual orientation...etc. I know their existence in Airbnb is an unintended consequence but this is also a cultural thing, if it is not taken seriously, can become pervasive and ruin a beautiful thing. Second, as an attorney, I am concerned about the regulatory aspects this business. However you categorize it, Airbnb is a huge part of the hospitality industry, it runs into the same issues as hotels. I am sure the majority of hosts operate perfectly well without abusing guests. However, the more bad headline news like this, the more ammunition the hotel industry has to lobby for more legislation to regulate Airbnb like a hotel. I certainly don't want that and I am sure most hosts don't either.
So, what do I expect? I think the non-discrimination agreement is a good starting point but if Airbnb can presist in its messaging and build tools to prevent some things, educate hosts why discrimination is not only not cool, that it will ruin a great thing for everyone else, a culture can be built around this. Sure, it might never be perfect but perhaps it can be reduced to a minimum.
I think us hosts have an important role too. Just like learning how to get all the other practical aspects of our units to the best possible condition to attract guests, we are all part of a brand that we need to protect. So, as long as this continues to happen, I am going to have to voice my thoughts and I hope someone listens.