There's obviously a market for people who don't mind sleeping with strangers but I'm definitely not in it. I'm way too paranoid that I would get robbed.
The credit card cloning example from the original article would probably be my biggest fear. I'd be checking my credit card purchases multiple times a day for weeks I'm sure. While actually there I'm sure I would put my wallet, phone and anything else that's valuable in a bag and sleep on top of it. It wouldn't be a very relaxing night's sleep just before an interview.
On the other hand, hostels tend to be cheaper than AirBnB and I have no problems sleeping there.