I recently looked at the Data.SE site. After viewing other people's queries, I decided to write one of my own. You see, I have only cast one downvote thus far in my SE career, but I have cast more than $610$ upvotes. I was curious to see if this was typical: http://data.stackexchange.com/mathematics/query/94621/downvoters
It appears that most people cast more upvotes than downvotes. However, there are some people who have cast significantly more downvotes than upvotes. (This is more noticeable on SO than Math.SE.)
I mentioned this in chat, and someone suggested that the system not allow someone to cast more downvotes than upvotes. I wanted to know the community's thoughts on this proposal--are there some downsides to this idea that I'm overlooking?
It appears there was once a policy that StackExchange had against casting disproportionately large numbers of downvotes. However, that text in the blog entry is crossed out, so it makes me wonder why they changed.