I've been looking at AirBNBs recently for a vacation. The small guy is an outlier anymore. Most of the listings are obviously professional, ie they do it for a living and have multiple properties and property managers. The network is hard to unravel since the companies behind the "hosts" create many profiles, but it is easy to see that its not just Carla or Emily or Cody offering up their apartment while they go on holiday. I've been on AirBNB for more than 6 years and have hosted as well, but the rules as well as the standards have tilted heavily to favor the big players.