A good debate gets people worked up and ready to comment. My idea is for someone to be first. Leave a link to a post that can be debatable. No link dropping in less you can back up your fight with a source.
Who wants to be first? I will debate your post and you debate my comment on your post. Then anyone who wants to debate can jump right in the debate. Then if anyone else has a debatable topic leave your link. Please do not leave your link if you don't feel like debating everyone elses topics.
The idea is to get your Google readers to join in the debate.