Airbnb guests game the system w/ over the top complaining

See the article:

www.dailytelegraph.com.au/rendezview/they-seemed-normal-enough-but-these-airbnb-guests-were-far-from-it/news-story/8419fd4c4b0eb1bb64c617ac8e3070ff

Relentless complaining might just get you a free stay