There are numerous examples in the past where Bernie has specifically targeted authors for no other reason other than he just disliked them. He has run some of them off the site.

During the "whale-no-voting experiment" he had a list of 10-20 authors that he would routinely downvote. But, he would not just downvote them with a normal downvote like you or anyone else would, no he would downvote in the last 12 hours with the full weight of all his accounts using many more rshares than anyone else was "allowed" because he knew the "whale experiment" couldn't counter his downvotes during that time.

The net effect was a massive reduction in post rewards because his vote was the largest vote in the system. He was abusing the system and not playing by the same rules as everyone else. Clayop wrote a post or two about it and his numerous targets complained that the 12 hour window needs to be adjusted because of him abusing it.