The quality metric is your own view of the user-provided reasons for moderation.
Posts on Slashdot have a score between -1 and +5. They can be modded up or down by randomly selected average users who get 5, 10 or 15 'karma' to apply. Karma is applied along with the set of negative or positive reasons (flamebait, troll, insightful, informative). You can tune the slider to show you posts rated in any range between -1 and +5, and apply special mods to certain reasons (e.g. make 'troll' mods drag things down more, or either get all the funny posts or push them down) to customize this further. All posts are visible if you browse at -1. Logged in users default to a score of 1, or 2 if they have a history of positive contributions and elect to check the box to add 1 to their score. Anonymous users (who are now required to be logged in as well, but who select 'post anonymously) start at 0 always. It's possible to have your account fall hard enough that your posts start at -1 as well.
I believe they said they'd only ever actually removed a handful of posts due to some lawsuit or another (might've been that 09 F9 11 02 key? I don't remember any more).
There's also meta-moderation, where anyone can vote on whether the mods that were applied are fair or not.
Posts on Slashdot have a score between -1 and +5. They can be modded up or down by randomly selected average users who get 5, 10 or 15 'karma' to apply. Karma is applied along with the set of negative or positive reasons (flamebait, troll, insightful, informative). You can tune the slider to show you posts rated in any range between -1 and +5, and apply special mods to certain reasons (e.g. make 'troll' mods drag things down more, or either get all the funny posts or push them down) to customize this further. All posts are visible if you browse at -1. Logged in users default to a score of 1, or 2 if they have a history of positive contributions and elect to check the box to add 1 to their score. Anonymous users (who are now required to be logged in as well, but who select 'post anonymously) start at 0 always. It's possible to have your account fall hard enough that your posts start at -1 as well.
I believe they said they'd only ever actually removed a handful of posts due to some lawsuit or another (might've been that 09 F9 11 02 key? I don't remember any more).
There's also meta-moderation, where anyone can vote on whether the mods that were applied are fair or not.