So, its nice that things are marked not and idea or duplicate or spam or done or whatever. But why are they still there? They just clutter everything up.
Ideas that are marked should not show up unless you are searching for them. They make a mess out of the popular, latests, and random lists.
Anything marked as not an idea should be deleted, or at least moved to another section of the website as an example of a bad submission.
Dupes should be overwritten with just a link to the original idea.
Bugs should be moved to their own section, or deleted.
Basically, things that don't really have any need for a vote should be pushed out of the public eye, allowing better ideas to be exposed.