The issue here is that tag-spamming problem - people upvote this in masses and then all top 20 topics are dominated by the same posts. So you need a whole armada to downvote a more or less spammed post and even then the whales have to join. The problem now is that all whales upvote spammed posts - so in general they risk their whole investment as nobody is interested to search for relevant content between some other stuff. It can not be that the same 6 articles what are even top earners are in 18 of top20 topics.... then whole steemit is failed. I even wrote a post that editorial work must be done by whales to protect their investment:

https://steemit.com/money/@hastla/why-whales-and-dolphins-have-to-start-work-for-steemit-or-lose-their-whole-investment