The below article was deleted from the queue in r/politics and I've been unable to post articles in politics and a few other subreddits ever since, using a particular handle from a particular IP.
Ron Paul’s Challenge to the Left: http://dissidentvoice.org/2011/07/a-question-of-morality-ron...
My point stands: reddit has been complicit in silencing political opinion long before it began worrying about whether child porn should be allowed or not.
You have also mistaken the views and actions of a specific community for the views and actions of the site owners. Anyone (yes, even you) can go start a subreddit whenever they want, and restrict content however they want, even if that includes suppressing information they don't agree with or banning users with whom they disagree. The idea behind reddit is that people show their support for a specific community by frequenting and contributing to it. If you don't agree with the way a community is being run, you are free to find a better one or even to start your own.
I'be had discussions with subreddit moderators and reddit admins. The majority of them dislike my political opinions, thus the active censorship.
To restate my point: reddit has been actively deleting unpopular political opinion long before they thought about restricting kiddie porn.
That kind of prioritizing is what's been instrumental in the herd of geniuses that now inhabit reddit.