We stayed at an Airbnb in Paris. The apartment was okay, but had some issues (dirty dishes, smoke smell) . We posted a review that mentioned these things, but also the good points. I guess the host did not like the review, so they told Airbnb that we had told them that if they gave us $100 we would post a five-star review; otherwise, we would post a negative review.
We had made the mistake of communicating with them using our own email (instead of Airbnb), so I guess they doctored an email to support their claim. Airbnb told us that we had violated their rules of conduct and our review would not be posted and if we continued this behavior we would be banned from Airbnb. They would not show us their “documentation” of our threat, nor even entertain the fact that possibly, the host was lying. I tried to contact Airbnb through their support, but got no response (and closed).
Lesson learned: do not give an Airbnb host your personal email address.