There is definitely something wrong with curation rewards. I don't think it is the bots, though. I think most of the voters (including me) just quickly skim through the article and quickly upvote if it seems promising. You can always change your mind later, but this rarely happens. This strategy is quite natural, as the time plays so big a role.

I still think curation rewards are a necessary part of the network, as only some people are content producers, but the vast majority are consumers / voters. We might look for a better algorithm which will incentivize actual reading of the articles and informed voting. If we can do this and attract more content creators, bots will not be a problem.