A Disclosure too Far

"An army has jailed a soldier and cancelled a military operation after he published its details on Facebook. The Israeli Defence Forces (IDF) had to call off an incursion into a West Bank village because the soldier revealed his combat unit, the location of the operation and when it was set to take place". Full story here

So you guys know a bit about formal models of cyberpsychology now...so what do you think might contribute to explainng this type of online behaviour? Lack of social presence? Social Context Cues attenuated leading to deindividuated, self-absorbed behaviour? Weak public self-awareness / heightened private self-awareness? Tell me...