A bad review can hurt your work but work harder and get good reviews and work then picks up again. However acting the way she has only makes things so much worse as one bad review often gets forgotten but a 9 page thread about how you are making threats and getting other people to make threats really is going to completely ruin your business.
If you get a bad review then so be it, take it on the chin, learn from it and make sure you don't get any more of them. Acting like a crazy who should not be allowed out in public without supervision does not make you look good.
When in the eye of the public by having websites and giving services we are always going to have things we don't like said about us. How we react to that says more than what was said. A polite rebuttal or apology or even ignoring it goes so much further than losing the plot and making stupid threats that everyone knows could not possibly be true as that makes you not only look like a bad service provider but also makes you look totally stupid.
If you don't like what was said, refute it or ignore it but don't act like you are so drugged up you have no idea what reality is or act like you are a just released mental case. It doesn't help. It wont get the remarks removed. It wont make you look like a good prospect to book.
What the hell goes through a womans mind when she acts like this? Or when she gets others to do this for her? It doesn't make any sense at all.