They should be paranoid. If that is what would take them to consider their safety and stop posting private things in public platforms - it's more than worth it. She is vagueposting basically all the time, talking about topics others clearly shared with her with assumption she will not spread it further (they are idiots, everything that left your head is public info but it's a different issue), has been told repeatedly that the only reason she is fine is because she is not that interesting, not because it's hard to find where she lives. And her reaction every time is bitching why people share this info, not to stop sharing it herself. I say at this point if something does happen it's just Darwin-kun at work.