Meh, he was taking around 90 percent of his own votes on his main, @sock, @bigdaddy and likely others. then there is the outsized retaliation to anyone who does downvote him, and he calls in the trail he also has access to.
I am not so sure if he has been a net positive in the last few years as for the most part, most people don't seem to read his content at all, considering it is often up in the trending areas.
I am yet to flag him, perhaps at all (or for a very long time). The ganging up is mostly a response to his behavior I think.