Authors should be able to delete submissions, but I can see how some people might disagree with me. If I'm super pumped about the next release of Amiga, and someone posts a story, I'll be excited. I could get upset if the author decides to remove it just because he|she didn't like the discussion it was generating.
If a poster realizes that he|she as a whole bunch of errors, he should be able to delete his|her previous submission, and resubmit it with the corrections. Why add functionality to allow authors to make changes, and then reset the vote, when you're doing almost the exact same thing by deleting and resubmitting?
I agree that authors should have the ability to delete their submissions, but not to make arbitrary changes at a whim. We have a Preview button, use it.
Tomorrow is going to be wonderful because tonight I do not understand anything.
-- Niels Bohr