This is definitely a good idea... although I find it slightly ironic that we're having to start a "movement" to do exactly what the original intention of a social content platform is. But such is life.

I only curate manually to begin with, so I can totally get behind this. I might suggest-- as an additional incentive for others to keep their noses clean, that if anyone has more than one upvote bot comment on their post, they are disqualified... this should support those who are trying to use Steemit the way it was created, IMHO.