Slashdot was sold to another media company which had other priorities. Are you aware of its "redesign" drama strictly followed by that same new leadership? Many users left then and there.
I left a long time ago. I think around the same time as CmdrTaco. But the place was basically just tech Luddites and Microsoft bashing so it became a bit repetitive. Also: HN.
Slashdot is a good example how a vastly unpopular redesign to make the site more "modern" can bring the whole business down. It's not even the bad redesign per se; it's sticking to it, and not reversing on it. A real shame in my opinion as I think that auto-moderation system is the best I've seen.
It was ridiculously easy to game the Slashdot moderation system. You knew what topics would get upvoted -- positive about Linux, negative about something like SCO during the lawsuit period. It was not difficult to accumulate karma.
I'm not sure if that was the fault of moderation system. This is more of an echo chamber effect which exists everywhere where there are humans involved. Not sure if technology can change that.