It would appear that there is someone periodically roaming the boards downvoting literally everything; questions and answers. They seem to stop eventually, but I suspect this is due to them hitting the limit of votes they can make, rather than saying to themselves that the fiftieth answer they've read today is the first undeserving of a downvote. This would strike me abusing the privilege of being able to vote at all. It seems to have been happening daily for approximately a week, and has been noticed and commented upon by multiple users.
My question is simple; is there any way whatsoever to combat this behaviour? Can we find out who is doing it and take away their voting privileges? Can we cancel their downvotes? Can we (figuratively, not literally. Well, maybe a little literally) kill them with fire? At the moment, the only option is to upvote to compensate the effect of their downvote, but this requires us to either upvote something we would probably not have upvoted before, which I dislike doing, or to have our upvote essentially cancelled out by their downvote.
It simply makes the board a more annoying place to post when you know you're going to be downvoted no matter how good your question/ answer is. The fact that people often bandwagon and give further downvotes to a previously downvoted question doesn't help, and I can easily see this driving away new users. Someone like myself is miserable and lonely enough that it won't have much effect on me, but newbies are another issue.