It's amusing that people act like HN isn't social media. If anything I wish they'd just allow you to not be able to see your score when you're logged in.
I plan on shorting Airbnb once it IPOs. It will only go down in the short term. Regulations were at an all time low and will slowly ramp up. For better or for worse, these regulations will hurt Airbnb.
I'd be curious to hear from anyone who seriously thinks Airbnb will be able to achieve substantial growth in the next 5 years, given the increasing likelihood of a slowdown and more regulations from large cities.