Dear @focusnow, i suggest you to ask for it to @themarkymark, he is a very effective witness and i had same problem with a crazy user which started to downvote my post just because i was posting an answer to a @berniesanders post, after one week this guy stopped to downvote my posts and everything run normally now.
I suggest to visit his page and in its latest post writing about, but he should be your witness of course...