Hive account@berniesanders and Hive account@randowhale, on flag war against Hive account@haejin. To make it simple :
Hive account@haejin : make posts, people like it, he get big share of prizepool of steemit. See steemit as a way to gain visibility and helping people learn 'to fish by themself'. Earn money doing it, just go on his steemit page to know how much, steemit is transparent you can know how much everyone has in his portfolio.
Hive account@berniesanders : he exploit upvoting with bots, take part of the prizepool posting nothing genuine and doing nothing for steemit community, see steemit as a 'game' where trying to earn the most is the goal. Hate Hive account@haejin because he earn less than before and accuse haejin to 'rape the prizepool' (no comment about the way to say it ...). So he flag his posts, a flagged post make less or no money and he is 'happy' with it. Always angry and insult haejin followers, also he can flag you for nothing.

Check my blog, I made a post about it, other haejin followers have done it too, maybe a search with 'flag war haejin berniesanders' can lead you to some stuff.