This is absolutely true and I agree, but you also totally missed the point of the post, and this criticism is totally off-base.

OP wrote this post as a demonstration of how to get a native ios app prototype up and running quickly using tools like app design vault and stackmob, not in order to make any comments about airbnb or to actually try to make a full business out of this clone. The basic Airbnb interface/data structure was simply used as an example framework for the author to show off the tools and workflow.

I do think that an adjustment to the title would help to clear up the confusion around this -- this is not the only post in this thread making a similar criticism.