Re: No upvoting
I can tell you that people take subreddits very seriously. Maybe not some of the really obscure subs with a handful of subscribers but larger subs and default subs can really get people riled up if they get so much as one downvote when they think that they are right or helpful. Some people take that Karma score very seriously, others not so much. I feel like without the voting system you lock yourself into a handful of top Redditors who will submit the majority of the links and it will start to be groomed rather than let grow. Maybe someone out there remembers FARK when it was a little more of a free for all, then it started getting tightened up, Digg came around and people started leaving. Then Digg did the same, tightened up the rules, people fled to Reddit. I guess this is the cycle of social news aggregator sites.