I don't know if she will or not but all you can control is your response or lack of response.
"Letting" an N have the last word is a frustrating but I think valuable exercise... Let it happen.
They "win". They "win" again, etc. (IOW, every time they veer off into trying to hurt you...you stop. Just don't say a word.)
Then you resume the conversation with anyone else you'd like to talk to on the board.
You are NOT obligated to respond to every single voice who speaks, especially if your instincts tell you one of them is out to harm.
Sounds like a very safe and excellent opportunity to practice boundaries, non-reacting, ignoring taunts, all of that. If you like the board in general, don't let anyone drive you off it. One thing to be aware of, I think, is using the word "you". Once you

start saying "you" in an accusatory way...it's all downhill from there.
Okay, there's all my serious advice. My inner evil twin really wants you to post as your response this link:
www.thesupplyroom.com. That would just be sooooo pleasant, every time an N goes there.
Good luck and let us know!
BTW, last night I read somewhere a whole forum based around getting people away from the suite101 and any other N-issue forums that seem dominated by Sam Vaknin's writings and followers.
Hopalong