Sometimes things do go wrong however the impact of them going wrong differs between businesses. When things go wrong for a mobile phone company lots of people might have poor reception but when things go wrong for AirBNB, a person could actually get killed. This has always been my fear and I sincerely hope they shutdown or pivot before this happens.
AirBNB hasn't been upfront about the level of risk their customers undertake when they use their service. And the downside, however rare a occurrence (even if it's one in a million or one in a thousand) is just too bad to even consider consider using them.