Earlier quoted context omitted.
What im not sure about is Airbnb's moat. They have a great brand name and all, but their service is very limited: 15% is a very large cut to take on these transactions. What prevents another company from doing the same at 12% and costing 50% to operate?
Nothing prevents another company from doing that, but all of the hosts & guests are already on Airbnb. Two-sided marketplaces are very difficult to start, but once they have some momentum, it's even more difficult to unseat them. Look at Craigslist - terrible UI, hundreds of startups have tried to challenge it in the past 15+ years, and yet it's still my go-to when I need to sell some old furniture.
You could argue that Craiglist's brutalist aesthetic is its genius.