The comments that "Karin" is leaving on her own status updates strike me (caveat: I am not a mental health professional, though my parents both are!) as fairly classic paranoid (like, actually diagnosably paranoid) talk. Delusions of persecution via secret networks operating within complicated bureaucracies, interspersed with violent imagery, is pretty much what paranoids spend their time thinking about. 500 years ago they probably would have given you an elaborate description about all the different kinds of demons in hell; now it's all about the CIA and the Bilderberg Group or (in this case) international academia.

Anyway, long story short, my guess is that this isn't spam/CEO gaming at all, but a mentally ill human being. I'm frankly surprised there aren't a lot more Facebook/Twitter accounts like this.