So, someone makes saint without actually contributing to the site and the community. I'd say that's his problem, not ours. Because if you persist in just logging in and downvoting for as long as it takes (gaining XP by voting takes a lot longer than by getting others to upvote you, by the way), you seriously have a problem.

Downvoting has an important function in this community. I personally downvote a lot of nodes (especially when I'm in a bad mood but that's another story) and I'd hate to see that control mechanism go.

Cheers,
--Moodster