This question already has an answer here:
I've just asked a question on Stack Overflow and I found out, it was a stupid question which I shouldn't put up there at first so I decided to delete the post.
However, the post had an answer and I couldn't delete it.
But, I faced a downvote of -7 when it closed.
And even after the closure I got 3 more down votes, adding up to a total of -10 on that question.
Why can users downvote a closed post? And is there a way I can remove that stupid post?