Have you ever met someone from a chat room?

I have a single friend who meets up with men she meets on internet chat rooms. She does this a lot and I have tried to explain to her how dangerous this can be. She tells me I’m just old fashioned and she’s fine. I’m under 50 and don’t consider myself old fashioned. I hear stories all the time about women getting raped by strangers they meet this way. Is there anything else I can say to her? I am really worried she is going to get hurt.