Sorry for the late reply, I had a busy weekend.
Don't worry, I'm not offended. We are looking at the same thing from different angles. I also may be a bit younger than you (I'm 27) so maybe I'm more used to using Facebook and IMs like a local bar.
What teens do online is the same thing you used to do in person with friends at a local hang out. Let's call that local hang out the "Malt Shop" and an alternative the "Soda Joint". Going on Skype to avoid bullies on Facebook is like going to the Soda Joint instead of the Malt Shop. All you friends will continue to go to the malt shop while you are sitting at a seat alone at the soda joint. Leaving Facebook will isolate you because few people will follow to Skype.
Also, your example of using Skype works if 1) Todd's friends and family also use Skype and 2) Todd's bullies never find her Skype number in order to harrass her there. Just as it is possible to be harrassed on Facebook it is also possible to be harassed through emails, Instant Messagers (I actually have myself invisible to someone who has my yahoo IM and won't go away
), and Skype. Grant it, you can't hid your identity as well on Skype as you can on Facebook, but she could still recieve harrassing messages on Skype just as I was on Yahoo Messenger.
I also based my opinion on what was happening to her in real life as well as online. She was being bullied online as well as in school even after changing schools multiple times. Should she have stopped going to school after she was recognized a second time? Should she stop learning if the class room is where people giggle behind her back or mock her to her face? Of course not, the school should be made safe for a bullying victim by removing the bullies. I would prefer suspension with educational community service to rehability kids who bully over expulsion. But if someone is terrorizing a school he or she will jump from victim to victim without intervention and would need to be expelled for the sake of the other students.
No matter how you look at it, I think a social space, whether a local cafe or a cyber cafe, should be made safe, not avoided for the sake of safety.