http://www.perlmonks.org?node_id=58601

I have been following some of the threads on downvoting, and it occurs to me that maybe there could be a time limit on the ability to downvote something.
This might eliminate a feeling that a person is being singled out and all of that person's posts are being downvoted.
I'm still fairly new here, and I don't have the extensive experience that others have with this system. Has this already been tried? Also, how difficult would this be to implement?