I absolutely love AirBnB as a user and I hope they can come to agreeable legal terms with the communities they are in. As a programmer and potential employee these ads say to me: "don't ever try to work at AirBnB, we only drink the finest Kool-aid and there is a lot of cyanide in it."
Again, I have no idea what these people are actually like, but that's the mental image of the company that those ads (and other company statements and actions over the years) conjure up for me. If that's the intent of their marketing, then mission accomplished I guess, but I've got to think there are better messages they could be putting out there to help their cause.
I know a few folks who have interviewed at their SF office, and it sounds hella cultish. More personality screenings than technical screenings, recommended courses of study so you'll fit in culturally, etc...