Perhaps a simple solution would be to allow down-voting on dead posts (I only seem to be able to upvote?) This would allow such users to continue losing Karma,

Perhaps a simple solution would be to allow down-voting on dead posts (I only seem to be able to upvote?) This would allow such users to continue losing Karma, and give a way of distinguishing users who gain karma and should lose their hellban, and those who need permanent banning?