For these folks, I think "tea bagger" is appropriate

Massive Censorship Of Digg Uncovered: "A group of influential conservative members of the behemoth social media site Digg.com have just been caught red-handed in a widespread campaign of censorship, having multiple accounts, upvote padding, and deliberately trying to ban progressives. An undercover investigation has exposed this effort, which has been in action for more than one year.

“The more liberal stories that were buried the better chance conservative stories have to get to the front page. I’ll continue to bury their submissions until they change their ways and become conservatives.”
-phoenixtx (aka vrayz)"