I came across a fairly bad question that was a duplicate. It already had 4 downvotes, but I thought, I think I probably have enough rep to afford 1 downvote. Plus, it'll put me to a nice multiple of 5.
So I click downvote and go to my profile and to my surprise, I still have the same amount of rep.
My question is this: If a question has been closed, either because it has been marked as a duplicate, or put on hold, etc, does downvoting still count as a downvote but not cost any reputation, and not cause the asker to lose any reputation? Likewise, would an upvote not grant the asker any reputation, because the question has been closed?
(I'm really hoping this doesn't turn out to be a duplicate, because the irony would be too much to bear. I looked for similar questions before I asked, honest.)
EDIT: Just to clarify, the question I found and voted on was in the regular SFF, not the Meta. I do already know that the Meta has different rules regarding voting and reputation.