[codeisawesome]

You have important points, but your tone defeats your purpose. Would have liked to read this comment again without the unfunny over-usage of “idiot”.

[mmirate]

At best, their behavior is idiotic. But short of consuming our entire vocabulary with ever-further steps of euphemism, there are few if any accurate alternative descriptions of the set of people who trust Facebook.

"Naïve", perhaps, but that excludes the vast swath of people who trust Facebook for more than a rather short duration of time.