Even the way you present it is as if users of AirBnB are ripping everyone off ("consequences of his actions...").
No, my observation applies strictly to those who rent their apartments in violation of their leases and/or local ordinances.
..even if the thing is bad, which is debatable in this case.
You're welcome to debate whether "the thing" (subleasing his apartment in violation of his lease -- for a huge profit) is bad or not, but to me it seems pretty clear.