I was enjoying our robust debate about voting so much that I wanted to be able to reply to OP's blog post with a much longer article. Disqus' comment form feels tight like last year's jockstrap on a growing man.
So I built that feature.
We just launched a new quickpost feature. We didn't bother doing any planning or invoking any forethought, so the feature may be a little messy for now.
If you have any questions about it, feel free to ask me in comments here.