I'm the author of the blog post. I have a significant interest in Airbnb's traction because I'm the founder of a collaborative consumption startup (ToolSpinner)

I'm the author of the blog post. I have a significant interest in Airbnb's traction because I'm the founder of a collaborative consumption startup (ToolSpinner). Airbnb is leading the entire sharing industry so I have a deep interest in the company as a learning tool. I crunched the numbers because I couldn't find anyone else that had. Most other numbers I had seem were dramatically less than what I was seeing. Most blogs, TC, Twitter, others all just say "Airbnb hit 10M wow". I don't really care about traffic to my tiny lame blog. My interest is in the growth of the sharing economy, I just thought I'd post it to share my thoughts and see what others think.