The person in question wasn't named and is shady as all get out, using sh**ttly legal rules to harass somebody she disagree with politically in an attempt to silence her. That's called bullying and can be very damaging.
Kipnis isn't being silenced. She's still speaking to the press, which is more than the identified target of her article is doing. If you want a real example of a lawsuit being used to sh**t down speech, look at what Peter Thiel did to Gawker. And the facts aren't even in dispute there. What Kipnis did was sh**tty and she deserves no sympathy.