This is one area of steemit that I am happy to have avoided and continue to avoid.
I did it once to a guy who was posting my and other stemians content as his own. It was at the same time as that big hardfork that gave everyone a power trip for a few days -- bad timing on his part. I flagged him into oblivion on all the posts that he copied from me and people that I knew. He was very repentant afterwards and removed all of the content he'd ripped off, so I removed the flags.
Here one steemit, your opinion has direct economic weight. Depending on your level of influence, that's a lot of power to wield. When everyone has skin in the game there's a lot more pressure not to be a giant asshole.
That word giant asshole keeps giving me the cracks. Hahaha