> People are changing their behavior to get better scores.
> Social Cooling is a name for the long-term negative side effects of living in a reputation economy
There are plenty of times I don't post something because even though I strongly believe in the idea I know "the crowd" does not so it will just get downvoted.
How something could be well utilized, versus how it is utilized, may be two different things.
There's an obvious conflict of interest in reducing another user's karma risks their ability to also downvote. (Of course, just because it's imperfect doesn't mean it's a bad system.) If this is the intended usage then perhaps it would be fair to expand downvoting rights to other users?