Under a Slashdot style system the "closed-duplicate" questions would be downgraded for those users who choose; you might like dupes and so you could choose to b

Under a Slashdot style system the "closed-duplicate" questions would be downgraded for those users who choose; you might like dupes and so you could choose to boost dupes for yourself. The community provides a default position (duplicates closed), provides the information ('this is duplicate'), but under a Slashdot style system you can choose that content that others 'hide'.