I always work on the principal that ...
By their words shall ye know them.
Some choose their privacy, for whatever reason [all of which are valid, as it's their choice].
Some really don't care.
Some can't type well enough to reveal anything
I signed the OSA, and had a rather high clearance for certain information. I still wince slightly when it's mentioned in the Daily Mail
Matters concerning Military catering are not for Public consumption, IMO.