tl;dr - voice your opinion if you want it hearddon't let the popularity of dissentient opinions dissuade you from posting.
It's an archaic system that promotes stagnant discussion and 'vocal majorities' dominating. Make one thread asking about league for mac, or Karma mid, or Viktor buffs and you get insulted for three pages and your thread is locked. If these people didn't know they could get away with this kind of behavior they wouldn't act that way, but they know a thread like that will be locked and swept away and no mod will ever see it. I am, of course, speaking from experience with those very specific examples.
I know it's not exactly your department but I really would like to get the downvote system changed to a simple "hidden thread" feature, so here I am- a minority opinion- trying to get my voice heard.
(The forums need an overhaul anyway. I mean really, no avatars? No thread following? Come on... Curse does a better job running the minecraft forums for mojang, should hand the reigns over to them.. ;D )