First post on meta, so go easy on me here . . .

My thinking is that I downvote a lot of answers that I don't think are good. Downvoting costs reputation. I love that DVing costs reputation b/c it keeps the trolls at bay, but I also get really annoyed when I see a post with 2 answers, one of which is obviously incorrect, that both have a score of 0. I would prefer that the bad answer have a -1!

So I think a badge that marked you as having sacrificed some quantity of reputation would be cool. Perhaps:

Willing to Sacrifice - Gave up 500 reputation to down vote poor answers

Some name - Gave up 1500 rep to DV . . .

Some name - Gave up 5k rep to DV . . .

I know some people get annoyed at the concept of badges that advocate down voting, but I think that DVing is a critical part of SO, and that there are a ton of users who downvote but are not trolls - they are just trying to help keep the community organized