Going back to October of 2013, when Milo was in charge of The Kernel. Here are the moralizing and censorious articles, though written by someone else, obviously posted with Milo's approval:
How Amazon Cashes in on Kindle Filth
And lest someone try to say that Milo just posted the articles but he didn't agree with them:
And the last article (that I'm aware of) where The Kernel tries to take down Holocaust Denial:
New Amazon Shame: Holocaust Denial
For those who would be inclined to look at the extreme examples The Kernel chose to cherry pick, I would like to point out that no where do they ever mention having a problem with Amazon selling books like 120 Days of Sodom and Hogg on their kindle service. The Kernel's articles were nothing more than a sensationalist, cynical attack on amateur authors who wrote nothing worse than what was already for sale and who could not possibly defend their work in the court of public opinion.
EDIT: As a brief aside, Vox "video games should be free from criticism" Day at least had ever so slightly more moral fiber than Milo, in that Vox believes that all things that offend his sensibilities should be censored.