In light of the recent rash of duplicate posts I started thinking about autoreaping of duplicate nodes. It seems to be that it wouldn't be too hard that when a node is submitted to have it automatically diff'd against all recent (e.g. < 1 hr) posts by the same author (or maybe last 5 posts or something) and rejected if it's a duplicate. The node could be automagically reaped and would save the editors and moderators a bit of time as well as solve the problem (as happened in the example above) where there are different threads to the different duplicate posts.