I didn't post this to try help her out. It was because the person messaging her was referencing me that I then looked into it.
Presumably the obsessive ( if he/she exists ) would only have your AW/UKP alias, so no risk to you
What you should have done, is ignore her
or advise her to contact the police/crimestoppers, then ignore her. Unfortunately, the only thing you do seem to ignore is the solid advice given to you already.
I suspect you were flattered that she reached out to you, that she published your AW field report, that you and she obviously spent some time in contact with each other after your session discussing this matter. Your review (which includes the same issues you've raised here) and this thread could be interpreted as a message to the prossie that you are doing everything you can to help her
Genuine or not, prossies get this kind of stuff on a regular basis. As someone already pointed out, no good can come from getting involved. What exactly did you hope to achieve?
Your choice whether you take the advice of the majority here, but as of writing this thread has had over 2000 views. Hopefully it'll serve as a useful warning to others