Thanks, guys. I went to the old thread and followed Wendy's advice:
If you want to report this to Stop Plagiarism, you'll need screenshots of this story including the posted date (in case it gets taken down), and links to the original story. Copies of any attempts to contact the plagiarist are also helpful. My guess is the other works there could well also be plagiarised...
I now have a screenshot of the stolen story (and of course I have links to the original; gfic should be good enough.) I've also emailed the "author" in question to tell her that I knew what she'd done and will be sure to save a copy of anything she sends back.
Oh, and my review on the story -- the first review; caught it right away thanks to a stupid thief who didn't even change the title! -- has been posted, so everyone should be able to see it.
Fortunately, it's her first story -- under this nickname, at least -- so we don't need to go hunting for the authors of her other postings.
Of course, if any of you want to spam her on my behalf, I certainly won't object.
