Once upon a time, Digg.com was the #1 site for sharing links. Reddit ended up overwhelming Digg. It's very possible that Reddit is on the downward slide now, and Saidit could replace it.

But some things need to happen. You can't focus too heavily on censoring "hate speech", otherwise the site will go the same route Reddit did. The mobile app needs to be dramatically improved (I can't even upvote anything on it). And it needs exposure. Reddit had plenty of exposure on Digg back in the day. In fact, the top Digg users would often go to Reddit first to find interesting links to share.