I have discovered my friend has been posting very nasty comments on TripAdvisor, about a small restaurant - the only reason she is doing it is because this woman who owns the restaurant spoke to my friends husband several times, and she is extremely paranoid and jealous of anyone who she thinks is after her husband. The comments are quite vindictive about the woman personally.
She is going under anonymous names, and the reason I know is that she told me when she was drunk one evening. My friend can be very vindictive and once got someone the sack because she crossed my friend.
My question is: should I tell this woman who owns the restaurant?