It has happened to me too, but in an odd way. I met a group of people from a mental health site (not this one) who I thought were my friends. (was I ever wrong) Well one person started to use my username to reply to other member's blogs and stuff and they said really mean thing to others in my name, and now people think I am guilty of things I didn't do or say. I was totally sabotaged. There is no way to prove it and when I tried to talk about it on the site, I got blocked for making someone feel put down because I mentioned how I was being lied about. I can't even defend the lies being told about me and some people will believe what they want to. During the meetings I heard outright lies about others and it made me feel bad to even be a part of that group. What is really bad is the people who think I hurt them, I don't even know what all was said or to who.

So I no longer want to attend these get togethers because I saw too many people stabbing each other in the back while pretending to be their friend. Then that behavior came on the message boards. I am glad I am no longer a part of that mental health site. So I guess this is like cyber bulling if they are using your identity to spread hate to others. But to me it shows how mentally unstable they are to use someone elses name to cause problems with others and just to hurt that person's reputation. It makes me sad that this happens. Reminds me of high school and I guess some will never grow up.