There are downvote guilds, really - you mentioned @fulltimegeek and @hendrix22, all them are essentially acting as one.
I don't agree with a limit of four posts a day, but I do think perhaps some kind of vote power shift might be in order. There have been, when looking at updates, THOUSANDS of downvotes on haejin, and though they have put a dent in his earnings, it's not enough to get him to stop doing what everyone has a problem with. Essentially it is acting just as the corrupt US: rich few people have massive influence, whilst the masses have almost none. It's Citizens United: money is speech. I'm not sure what the solution is, because just making all downvotes equal also opens the door to revenge flagging by spammers. But as it stands, haejin can destroy a minnow's rep with just a few downvotes, but thousands of minnows and even a handful of whales and dolphins can't touch his. Maybe downvotes should effect higher rep proportionately to the rewards? So like all the people downvoting him wouldn't nuke his rep, but thousands of downvotes do chip away at it?
I have read a lot of posts about this topic, but am still rather a noob and don't pretend to fully grasp the politics of it.