Research Networking: “Scientists caught up in fictional friend network on Facebook”

Since research networking resounds throughout the scientific community, the article “Fake Facebook pages spin web of deceit” awoke my interest. It talks about a new case of a bogus network on Facebook of  “more than 100 scientists, policy-makers and journalists linked to stem-cell research, whose identities have been purloined.”  Even though the perpetrators and their motives remain unknown, an interesting assumption was made that through a false profile and a network around it a researcher may obtain “sensitive information from a hoodwinked competitor”. I am not sure that I understand completely how that would work in detail, but maybe some of you can offer more explanations. Other than that, the article also helps to understand the reluctance of some scientists concerning research networking.