I think people's opinions are polarized this year because of the election. If Wikileaks had only released information on the Malaysian Prime Minister, for instance, I doubt that we'd be seeing the same kind of strong opinions about them.
True. It's odd, though, because even if I did plan to vote for one of the major party candidates, I'd still want to know anything that shed light on corruption they were involved in, character flaws, etc.
It's odd to see people fighting to suppress information about the so-called "good guy" when in fact they ought to be considering why they would vote for someone who was involved in such things. Maybe most people just want to feel loved and protected by a powerful warlord.