Personally, I would prefer curators to concentrate on promoting positive posts, rather than policing abuses. I think policing should be done separately.
The problem as I see it is that it is usually the little people who get hurt by "downvote wars".
If a whale follows curators and wipes out their votes it is the smaller accounts who feel that most. I have seen people who have had their quality post downvoted just because their post was upvoted by the "wrong person". When you are starting out, or don't earn much, those downvotes have more psychological impact than a big upvote.