There has been an attack on @haejin since December by people who are jealous of his success. They see steemit as a zero sum game, where every dollar haejin receives is a dollar that they are losing.

Because of their greed they downvote these posts. If the power of the downvotes outweigh the power of the upvotes, it hides the post.
They do this to try to censor good content. They also post numerous copy/paste spam in the comments section denigrating @haejin.

If you find @haejin's content to be interesting or useful, please upvote and resteem. Also please downvote the spammers so that we can make this community a better place.