Your reputation is not -327, but 327. And the reason that you can't delete your question, is because it has answers, and you can't delete your question if it has answers. Your reputation doesn't matter when deleting your own question, it are the answers that matter.
If you want to delete your question because it is a bad question, then Silver members can vote to close the question. But they only vote to close if there's a reason to close it, when the question is unclear for example.
By the way, question about this site should be posted in the
Site Bugs & Suggestions forum[
^]