Okay, why be down-voting a perfectly valid question? Just because I (or you) knew the answer don't mean everyone does, and down-voting the question "ghosts" th

Okay, why be down-voting a perfectly valid question? Just because I (or you) knew the answer don't mean everyone does, and down-voting the question "ghosts" the answer as well, so other folks who might have the same question will end up havin' to ask it again instead of benefiting from the (correct) answer already here.