I see your point. I'm just not sure if I agree. It would be good if each bot was unique. There would be a limited number of them. But would Steemit then have 10 bots that upvote based on grammar, 8 on unique images, etc?
Some bots could still be problematic. If you had a bot (or bots) upvoting unique images for example, Steemit could be flooded with users posting images before they figure out the bots vote is being diluted. Some wouldn't care and continue to spam with new images.
@patrice It's not steem that would be owning the bots. It's the owners that would own them. The bots would be voting based on the same criteria that the owner would be.