I found people are joining into groups to upvote each others posts. At first I thought this was ok but then it sank in. They are gaming the system for profit. While I get mining pools for video cards and hashing I don't get it for posting original content. I see this a major threat to Steemit also. After all if someone post some idiotic crap and it gets upvoted by a bunch of quid pro quo "post miners" we will have a bunch of nonsensical garbage worth thousands of dollars. It may turn steemit into a laughing stock. I would hope these post mining pools don't just automatically upvote any post of garbage expecting a likewise upvote on their posts.