I'm not sure that I believe this. I can believe that there are some places out there that think that they can get away with enjoining you against posting negative reviews (until the law eventually settles down against that, as I'm sure that it will), but I find it hard to believe that there are many places that think that they can fine you for the actions of other people. Can you give examples?
EDIT: As baddox (https://news.ycombinator.com/item?id=8131575) politely points out, I worded this badly. I want to say something like "the actions of other people over which you have no reasonable expectation of control" (for example: you can reasonably be expected to prevent guests in your room from damaging the furniture, but you cannot reasonably be expected to monitor the Internet usage of all your guests after they leave to make sure that they do not post a negative review).