Why is it fanwanking to say that the reason Picard didn't know about the Borg despite the Federation having had contact with them before is simply because Starfleet isn't in the habit of telling their captains everything?
I figured Starfleet buried it's original encounter with the Borg deep. No reason to tell the populace that their is a race of space-faring cybernetic zombies out there.
It could deep six your exploration program PDQ.
except other members of Starfleet hadn't heard of it. Picard, Admiral Hanson, Shelby, people like that aren't civilians.
why hide an encounter with a dangerous, mysterious foe from your own high-ranking officers?
there's nothing in "Q Who" or "BOBW" to indicate anyone in the upper echelons of Starfleet had ever heard of the Borg before.
a "cover-up" is fanwank at its best.