So what use is it to filter them? It seems you still have to judge their worth based on their actual contents.
Consider there are 100 upvotes and 100 downvotes. Net votes: 0. The submission would end up with a lower ranking that you wanted it to have.
The front page has an algorithm that is "less noise, more news" but if you go to the /active page, you get more conversation-driven submissions. I tend to load both up and refresh every few hours.