Depends on the extent of the matter but as regarding this one well I will agree with you. So far she has not done anything to serious to what she feels. Like it has been mentioned. Still somebody needs to talk to her one on one without hating on her so to speak. Maybe she would listen to reason on the matter. Although based on what I have seen this is unlikely.
I'm also of the opinion that starting a thread isn't helpful. Honestly, if you're having problems with her, just report her to the site administration and block her. After all, she does have the right to say what she wants and we're all not in a position of power on this site to actually enforce any kind of actual consequences. Only admins can make that call.
Looks like a troll