because constrained supply leads to shitty solutions, and people spend their money on land rent instead of spending it on actual service (like making sure there are no hidden fees and cameras)

that said those are not new problems, and are not caused (nor exacerbated) by airBnB (likely the only tangentially significant factor is the decentralization of the hospitality industry thanks to online market places, and barriers to building more hotels, and of course people's preferences for renting something more unique, or simply something remote or secluded)