Then they arrange to meet with their lawyer and send out the usual letters. As a friend you would not contact anyone but offer support and stay out of it.
A jealous and mentally sick person is trying to ruin the reputation of a friend of mine, who is a doctor, by writing all kinds of false ridiculous petty things on a website (like rate your MD) about him. The comments have nothing to do with his work and do not belong on that site at all. I have tried to contact the website admins asking them to moderate and control what is happening and to delete the inappropriate comments but have no response so far. please help I don't know who to turn to.