My favs:
* Taglines were allowed in every post
* The rating system; e.g. +5 Troll
It was like a blend of the good light-hearted parts of Reddit combined with the technical prowess of Hacker News.
At least this is how I remember it, circa 2005 :)
I prefer prime source. I also prefer the nature of discussion here. But in the early days when /. was mostly all we had, before it got overtaken by "how to make a beowulf cluster of this" meme behaviour, it was good.
(Also I feel like there is TONS of room for really amazing rating & moderation systems still, like proving a rating & moderation engine interchange, along with allowing the user their choice of engines...use the sub-community's own, tweak it, or bring your own. And vote on your favorite engines)