we are supposed to call it the INFORMATION BOARD - and why?! I have no idea
As I remember, we were told that "bulletin boards" were where the popes posted their papal bulls. Obviously, true Christians would want no part of that!!
Similar to what others have said, I was counseled once for saying that something "bugged" me, because apparently that meant that the thing that had been irritating me had somehow penetrated my anus.
Also, we couldn't refer to a mischievous child as an "imp," because that was a word that referred to a type of demon.