On her website, she plugs her various books (presumably her collected essays) on how things are in Zim. So presumably she's there to do research on her books (assuming that she hasn't left long ago and is faking it all).
If she's really still there, then she's a fool. It's only a matter of time before she's killed, gutted, and roasted by starving Zims, and she won't get any warning before it happens.
My thought too.
I guess then we'll be treated to the hand wringing "What happened to Dear Cathy?" posts...like anyone wouldn't be able to figure it out