The ultimate result is this: Endless angry comments. Everyone feels rage. All parties mentioned by name (and some unlucky enough to have the same name) wake up to inboxes full of hate mail. Careers are harmed, sometimes permanently.
If you had never read this story, how would the world be different? You would feel slightly happier, and you would have likely spent your time doing something more pleasant. In other words: not different at all outside your own mind.
Unless, of course, you actually did something to help. Even a token gesture would be better than posting an angry comment. Send an email with some nice words in it. Heck, maybe even do something in the real world to help. And instead of jumping on the rage train and telling everyone how angry you are, tell everyone what you did to try to make things better.
1. To be fair, the same is true for almost all online communities.
Edit: It's been an hour since I wrote this comment. So far, nobody has followed my suggestion and said how they've helped this situation. I guess I'll be the first. I sent a short email to Justine. Hopefully her day is a little better because of it.