Is there a website where I can warn people about my psycho ex?

Not to be malicious or anything. She is actually psychotic, and dangerous. I am about to get a restraining order, but I was wondering if there is a website where people can post their psycho ex’s as a warning to others. I think they have similar sites for people with herpes (I saw it on CSI so it probably has no merit.) again, I don’t want a site just to bash on my ex. But something legitimate to warn other people.