By all means, additional instruction is good. My point is that there are better use of time or better lesson to be taught than hazing new cadets with what they posted on their facebook.
You don't collect intelligence on friendly forces.
I don't know if cadets and new cadets are required to rececieve annual Operational Security and Information Security training all soldiers receive, but those two training is sufficient to training cadets and new cadets about digital security.
Or you could like me - no facebook account (I guess I am showing my age and I will not be assimilate
FYI - if you didn't catch it, I am class of 94.