Which would you rather have happen:
- Someone calls you nasty names on an anonymous blog.
- Someone in your social circle badmouths you directly to your significant other.
Which is more credible to the audience? Which is more likely to have a direct impact on your life? Which would cause more actual injury?
I've had both happen to me and it's clear which one hurts more.
(Note: This Port character sounds kind of nasty, so I'm not defending her fight-fire-with-fire approach, but I'm always skeptical of lawsuits based on internet smack, especially when it's not clear the plaintiff's life was materially damaged.)