Cool idea for a plugin: reddit karma checker

I have a cool idea for a plugin: it checks your Reddit posts for any post with some threshold of negative karma (-1, 0 etf) and then deletes it automatically. Occasionally I'll post something that for some reason people hate and it will get 7 or so down-votes before I can delete it. This plugin will scan your recent posts every 5 minutes or so and auto-delete the bad ones.