Please however consider that tuning the system for this one time annoying doppelgagnger could have a global nefarious impact upon more modest stories. If becau

Please however consider that tuning the system for this one time annoying doppelgagnger could have a global nefarious impact upon more modest stories. If because someone posted on a weird timewindow the article never make it to the front page it's fair to allow those article another go. An ill intentioned actor also could use this as an adversial strategy. For instance by self publishing bad buzz stories at the worst possible timing to ensure it won't make it to front page and could then exploit the de-duplicating algorithm to reject the story if it get publish again on a more favorable timeframe. I'm not saying it's a bad idea per se, but it should be extremely carefully though out. And I'm not sure it's more efficient that the organic downvote of called out duplicate by the human readers. PS: Quite ironically by engaging discussion here instead of simply calling out the dupe we are actually boosting this story...