Using certain tools, you can tell who upvoted the content and how much those upvotes are worth. While haejin would have you believe that his success here is due to his followers, in actuality, it is mostly due to a single user and himself. The user in question is a big whale with a lot of steempower and Haejin speaks for his upvotes and downvotes.

This information is available on the block chain via several tools, one of which is https://steemworld.org. I'd advise you to verify what I'm telling by looking at that site and putting haejin's username. You can tell who votes on each post and how much those votes are worth.